IAD - LON. Find cheap flights from Washington Dulles Airport to London from $230. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Tue 5/21. Tue 5/28. Search. Direct …Are you searching for American Airlines flights from Washington, D.C. to London? Find the best selections and fly in style.Flight UA924 from Washington to London is operated by United Airlines. Scheduled time of departure from Washington Dulles Intl is 22:05 EDT and scheduled time of arrival in Heathrow is 10:40 BST. The duration of the flight United Airlines UA 924 is 7 hours 35 minutes. Need to get from Washington, D.C. to London? With fares from $536, we offer a great choice of food, drinks and onboard entertainment & WiFi. The cheapest month for flights from London to Washington, D.C. is September, where tickets cost $572 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $762 and $742 respectively. Prices were available within the past 7 days and start at $424 for one-way flights and $475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Wed, Dec 4 - …1 stop. from £277. Washington D.C.. £289 per passenger.Departing Sat, 11 Jan, returning Mon, 27 Jan.Return flight with Fly Play.Outbound indirect flight with Fly Play, departs from London Stansted on Sat, 11 Jan, arriving in Baltimore Washington International.Inbound indirect flight with Fly Play, departs from Baltimore Washington ...One of the most popular airlines traveling from Washington, D.C. to London is KLM. Flights from KLM traveling this route typically cost $687.98 RT. This price is typically 81% more expensive than other airlines that offer Washington, D.C. to London flights. When booking this route, the cheapest RT price found was $576.Finnair. You can fly to London with Finnair from Los Angeles, Chicago, Boston, New York, and Washington DC. This domestic and international airline has its HQ in Helsinki, Finland. Founded in 1923, it’s one of the oldest airlines in the world—fun fact: back then, it was then known as Aero.Jan 5, 2024 · 1 stop. from $381. London.$389 per passenger.Departing Wed, Jan 15, returning Wed, Jan 22.Round-trip flight with Fly Play.Outbound indirect flight with Fly Play, departing from Baltimore Washington International on Wed, Jan 15, arriving in London Stansted.Inbound indirect flight with Fly Play, departing from London Stansted on Wed, Jan 22 ... Fastest mode. Flight • $702 (€601) • 11 h 5 min. Popular travel companies. Fly Play. Take a flight to travel 3657 miles (5898 km) from Washington to London. Fly Play is the main travel company operating this trip. Travelers can even take a …Browse destinations: $607. Flights to London Heathrow Airport, London. Find flights to London Heathrow Airport from $246. Fly from Washington on Icelandair, Virgin Atlantic, Delta and more. Search for London Heathrow Airport flights on KAYAK now to …Explore Virgin Atlantic's Top-Pick Destinations. Need to get from Washington, D.C. to London? With fares from $536, we offer a great choice of food, drinks and onboard entertainment & WiFi.Find the best deals on flights from Washington, D.C. (WAS) to London (LON). Compare prices from hundreds of major travel agents and airlines, all in one search. SkyscannerMarch 7, 1993 - My flight from Washington Dulles to London Heathrow aboard the British Airways Concorde. This was shot with Sony Hi8 camera on a SteadiCam. T...LNER operates a train from Newcastle to King's Cross hourly. Tickets cost £120 - £170 and the journey takes 2h 48m. Alternatively, Megabus UK operates a bus from Sunderland Interchange to Victoria Coach Station every 4 hours. Tickets cost £20 - £29 and the journey takes 6h 25m. FlixBus also services this route 4 times a day.Search and compare business class flight deals to London. Fly from New York from $1,842, from Newark from $1,849, from Washington, D.C. from $1,940. Book your business class tickets to London. The cheapest month for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport is February, where tickets cost $609 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,134 and $1,039 respectively. There are 3 airlines that fly direct from London to Washington, D.C. Dulles Intl Airport. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at £386 for a one-way flight. On average, the best prices for this route can be found at British Airways.Jan 5, 2024 · 1 stop. from $381. London.$389 per passenger.Departing Wed, Jan 15, returning Wed, Jan 22.Round-trip flight with Fly Play.Outbound indirect flight with Fly Play, departing from Baltimore Washington International on Wed, Jan 15, arriving in London Stansted.Inbound indirect flight with Fly Play, departing from London Stansted on Wed, Jan 22 ... RELATED: Flight time from London to Washington, DC. Non-stop flights take anywhere between 7 hours to 17 hours . Quickest one-stop flight takes close to 10 hours. However, some airlines could take as long as 40 hours based on …There are 3 airlines that fly direct from London to Washington, D.C. Dulles Intl Airport. They are: British Airways, United Airlines and Virgin Atlantic. The cheapest price of all airlines flying this route was found with Virgin Atlantic at £386 for a one-way flight. On average, the best prices for this route can be found at British Airways.The cheapest month for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport is February, where tickets cost $609 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,134 and $1,039 respectively.Flight deals from London to Washington D.C. Looking for a cheap last-minute deal or the best return flight from London to Washington D.C.? Find the lowest prices …Flying time from Vancouver, WA to London, United Kingdom. The total flight duration from Vancouver, WA to London, United Kingdom is 10 hours, 21 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is … 1 stop. Thu, Nov 28 LHR – IAD with Scandinavian Airlines. 1 stop. from $426. London.$427 per passenger.Departing Mon, Dec 2, returning Wed, Dec 11.Round-trip flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departing from Washington Dulles on Mon, Dec 2, arriving in London Heathrow.Inbound indirect flight ... Compare flight deals to London Gatwick from Washington D.C. from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flex your dates to find the best …BA216 and Washington IAD to London LHR Flights. Flight BA216 is code-shared by 4 airlines using the flight numbers AA6967, AY5416, EI8916, IB7404. Other flights departing from Washington IAD: SV36, UA992, UA918, UA780. Other flights arriving at London LHR: AI161, BA206, AC854, BA212. All flights connecting Washington IAD to …4 days ago · The best time to call from Washington to London. When planning a call between Washington and London, you need to consider that the cities are in different time zones. Washington is 5 hours behind of London. If you are in Washington, the most convenient time to accommodate all parties is between 9:00 am and 1:00 pm for a conference call or meeting. The total flight duration from Vancouver, WA to London, United Kingdom is 10 hours, 21 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Your exact time may vary depending on wind speeds. Wed, 15 May DCA - LGW with jetBlue. 1 stop. from £403. Washington D.C.. £419 per passenger.Departing Wed, 13 Nov, returning Mon, 18 Nov.Return flight with jetBlue.Outbound indirect flight with jetBlue, departs from London Gatwick on Wed, 13 Nov, arriving in Washington Ronald Reagan.Inbound indirect flight with jetBlue, departs from …Business Class. $1,003. London Heathrow Airport. Search and compare business class flight deals to London. Fly from Washington, D.C. from $1,783, from Boston from $1,784, from New York from $1,844. Book your business class tickets to London.Cheap Flights from Washington to London (IAD-LGW) Prices were available within the past 7 days and start at $357 for one-way flights and $493 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Washington to London with no change fee on selected ...Our data shows that the cheapest route for a one-way flight from Washington, D.C. Dulles Intl Airport to London cost £287 and was between Washington, D.C. Dulles Intl Airport and London Gatwick Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is £2,276.London to Washington has long been a high-traffic route for the transatlantic carriers, which explains why it was one of the first to get A380. Thanks to an overbooked cabin (and recently gaining BA Exec Club Silver status), I was lucky to get upgraded from World Traveler Plus (my booking class) to Club World. ...Washington to London Flights Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to London offer the perfect respite. Not only does exploring London provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap ...The cheapest month for flights from London to Washington, D.C. is September, where tickets cost $572 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $762 and $742 respectively.Cheap Flights from Washington to London (WAS-LON) Prices were available within the past 7 days and start at $189 for one-way flights and $376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Washington to London with no change fee on selected ...If you're flying from Washington D.C., the cheapest airport near London is London Stansted – which is 30.2 miles away from the centre of London. We've found flights into this airport …The two airlines most popular with KAYAK users for flights from Washington, D.C. to London are KLM and Virgin Atlantic. With an average price for the route of £609 and an overall rating of 7.8, KLM is the most popular choice. Virgin Atlantic is also a great choice for the route, with an average price of £604 and an overall rating of 7.7.As you can share your location, it will let you know easily how far you are in a straight line from any point of interest. Here are the steps to use it: Enter the address or the city of the first location. Enter the address or the city of the second location. Click on the "Calculate the distance" button. How far is it?Flight deals from London to Washington D.C. Looking for a cheap last-minute deal or the best return flight from London to Washington D.C.? Find the lowest prices …American Airlines AA6967 from Washington AA6967. American Airlines. LANDED. Updated:18:26. IAD. LHR. Depart Washington (IAD) Date Wed, 13 Dec. Time. 18:45. 18:20. Terminal-Arrive London (LHR) Date Thu, 14 Dec. Time. ... Hail a London black cab or book a minicab for door-to-door convenience. BUSES AND COACHES Catch a coach. Cheap Flights from Washington to London (WAS-LHR) Prices were available within the past 7 days and start at $368 for one-way flights and $468 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. The cheapest month for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport is February, where tickets cost $609 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,134 and $1,039 respectively. BA216. Depart Washington (IAD) This flight also operates under the following flight numbers under codeshare arrangements: AA6967, AY5416, EI8916, IB7404.Feb 28, 2023 · VIRGINATLANTIC.COM. However, booking Virgin Atlantic business-class flights is unreasonable — you can easily drop 67,500 miles and $875 in fees one-way. It's worth noting that you can book Delta flights to London for as little as 15,000 points in economy and 47,500 points in Delta One (business class). What is the cheapest flight from Washington, D.C. Dulles Intl Airport to London City Airport? In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London City Airport was $364 for a one-way ticket and $600 for a round-trip.The cheapest flights to Heathrow found within the past 7 days were $566 round trip and $459 one way. Prices and availability subject to change. Additional terms may apply. Wed, May 8 - Wed, May 29. IAD. Washington. LHR.Find cheap flights from Reagan Washington National Airport to London from $283. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Sat 5/18. Sat 5/25. Search hundreds of travel …10:03PM EDT Washington Dulles Intl - IAD. 10:23AM BST (+1) London Heathrow - LHR. 767. 7h 20m. Join FlightAware View more flight history Purchase entire flight history for UAL924. Get Alerts.Heathrow Airport Limited and Heathrow Airport Holdings Limited shall have no liability for any loss or damage suffered as a result of relying on flight information on this site which may prove to be inaccurate or incomplete. Get the latest status update for flight UA918 from Washington to London Heathrow.UA924 and Washington IAD to London LHR Flights. Flight UA924 is code-shared by 5 airlines using the flight numbers AC5350, CM2294, LH9267, LX3045, OS7808. Other flights departing from Washington IAD: UA932, UA942, UA861, TP234. Other flights arriving at London LHR: AA104, TP1354, LH2472, KL1031. All flights connecting … The cheapest month for flights from London to Washington, D.C. is September, where tickets cost $572 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $762 and $742 respectively. If you're flying from Washington D.C., the cheapest airport near London is London Stansted – which is 30.2 miles away from the centre of London. We've found flights into this airport …British Airways BA292 from Washington BA292. British Airways. LANDED. Updated:18:45. IAD. LHR. Depart Washington (IAD) Date Mon, 15 Apr. Time. 23:01. 22:45. Terminal-Arrive London (LHR) Date Tue, 16 Apr. Time. 10:49. 11:05. ... Hail a London black cab or book a minicab for door-to-door convenience. BUSES AND COACHES Catch a coach. One of the most popular airlines traveling from Washington, D.C. to London is KLM. Flights from KLM traveling this route typically cost $687.98 RT. This price is typically 81% more expensive than other airlines that offer Washington, D.C. to London flights. When booking this route, the cheapest RT price found was $576. Compare flight deals to London Gatwick from Washington D.C. from over 1,000 providers. Then choose the cheapest or fastest plane tickets. Flex your dates to find the best …1 stop. Sat, 7 Dec IAD - STN with Fly Play. 1 stop. from £276. Washington D.C.. £279 per passenger.Departing Thu, 5 Dec, returning Mon, 9 Dec.Return flight with Fly Play.Outbound indirect flight with Fly Play, departs from London Stansted on Thu, 5 Dec, arriving in Washington Dulles.Inbound indirect flight with Fly Play, departs from ... Find flights to Washington from $275. Fly from London on Icelandair, United Airlines, Virgin Atlantic and more. Search for Washington flights on KAYAK now to find the best deal. Disclaimer for Flight Radar Data. Flight UA918 from Washington to London is operated by United Airlines. Scheduled time of departure from Washington Dulles Intl is 18:30 EDT and scheduled time of arrival in Heathrow is 06:45 BST. The duration of the flight United Airlines UA 918 is 7 hours 15 minutes. The cheapest month for flights from London to Washington, D.C. is September, where tickets cost $572 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $762 and $742 respectively. Disclaimer for Flight Radar Data. Flight UA918 from Washington to London is operated by United Airlines. Scheduled time of departure from Washington Dulles Intl is 18:30 EDT and scheduled time of arrival in Heathrow is 06:45 BST. The duration of the flight United Airlines UA 918 is 7 hours 15 minutes.Book our best prices between Washington, D.C. and London within the next 6 months. Virgin Atlantic is incredibly proud to have been awarded Diamond status in Health and Safety by APEX and Simpliflying. This is the highest standard possible, and shows our unwavering commitment to keeping our staff and customers safe and sound throughout …There are at least 19 airlines that fly from London to Washington, the cheapest are British Airways (£221.84), United Airlines (£323.77) and Virgin Atlantic Airways (£348.11). When is the earliest flight from London to … The cheapest return flight ticket from Washington Dulles Airport to London found by KAYAK users in the last 72 hours was for $386 on PLAY, followed by TAP AIR PORTUGAL ($486). One-way flight deals have also been found from as low as $212 on PLAY and from $230 on Icelandair. Heathrow Airport Limited and Heathrow Airport Holdings Limited shall have no liability for any loss or damage suffered as a result of relying on flight information on this site which may prove to be inaccurate or incomplete. Get the latest status update for flight UA918 from Washington to London Heathrow.Are you searching for American Airlines flights from Washington, D.C. to London? Find the best selections and fly in style.VS22 and Washington IAD to London LHR Flights. Flight VS22 is code-shared by 4 airlines using the flight numbers AF9652, DL5982, KL4837, SQ2522. Other flights departing from Washington IAD: UA942, UA4940, 9X129, 9X184. Other flights arriving at London LHR: AA104, BA675, AF1580, BA1449.Flight UA924 from Washington to London is operated by United Airlines. Scheduled time of departure from Washington Dulles Intl is 22:05 EDT and scheduled time of arrival in Heathrow is 10:40 BST. The duration of the flight United Airlines UA 924 is 7 hours 35 minutes.Compare Washington Dulles to London Heathrow flight deals. Find the cheapest month or even day of the year to fly to London Heathrow. Book the best London Heathrow fare …Cheap Flights from Washington to London (WAS-LON) Prices were available within the past 7 days and start at $189 for one-way flights and $376 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. Book one-way or return flights from Washington to London with no change fee on selected ...For travel between the United States and Canada, $35 USD fee for 1 checked bag and $45 USD fee for second checked bag. For travel between the United States and the U.S. Virgin Islands, Central America (excluding El Salvador and Panama), Caribbean, Guyana or Bermuda, $35 USD fee for 1 checked bag and $45 USD fee for second checked bag.Explore Virgin Atlantic's Top-Pick Destinations. Need to get from Washington, D.C. to London? With fares from $536, we offer a great choice of food, drinks and onboard entertainment & WiFi.4 airports. The best one-way flight to London from Washington, D.C. in the past 72 hours is $194. The best round-trip flight deal from Washington, D.C. to London found on momondo in the last 72 hours is $374. The fastest flight from Washington, D.C. to London takes 7h 05m. Direct flights go from Washington, D.C. to London every day.Language. Great Britain. Use the FedEx Shipping Calculator for estimated shipping costs based on details, such as shipment origin, destination, date, packaging, and weight. What is the cheapest flight from Washington, D.C. Dulles Intl Airport to London City Airport? In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London City Airport was $364 for a one-way ticket and $600 for a round-trip. Flight time from DCA to LHR. Flights from Washington to London Heathrow take from 7 hours and 57 minutes up to 11 hours and 24 minutes, depending on your stopover airport. Please note that these times refer to the actual flight times, excluding the stopover time in between connecting flights, as this depends on your stopover airport as well as ...The geographic midpoint between London and Washington is in 1,832.68 mi (2,949.41 km) distance between both points in a bearing of 256.83°. The shortest distance (air line) between London and Washington is 3,665.36 mi (5,898.83 km). The shortest route between London and Washington is according to the route planner. The driving time is …Our data shows that the cheapest route for a one-way flight from Washington, D.C. to London cost £287 and was between Washington, D.C. Dulles Intl Airport and London …1 stop. Mon, Nov 11 STN – IAD with Fly Play. 1 stop. from $360. London.$387 per passenger.Departing Sun, Dec 1, returning Tue, Dec 10.Round-trip flight with Fly Play.Outbound indirect flight with Fly Play, departing from Washington Dulles on Sun, Dec 1, arriving in London Stansted.Inbound indirect flight with Fly Play, departing from …Washington D.C.. £276 per passenger. Departing Tue, 19 Nov, returning Sat, 7 Dec. Return flight with Fly Play. Outbound indirect flight with Fly Play, departs from London Stansted on Tue, 19 Nov, arriving in Washington Dulles.Prices were available within the past 7 days and start at $424 for one-way flights and $475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Wed, Dec 4 - …RELATED: Flight time from London to Washington, DC. Non-stop flights take anywhere between 7 hours to 17 hours . Quickest one-stop flight takes close to 10 hours. However, some airlines could take as long as 40 hours based on …First Class. $794. London Heathrow Airport. Search and compare first class flight deals to London. Fly from Boston from $3,393, from New York from $3,393, from Newark from $3,412. Book your first class tickets to London.Cheap Icelandair flights from Spokane to London. Some of the best deals we've found on Icelandair flights traveling from Spokane to London. Ensure the flight price, dates, time, and airline match your criteria before you book. Sun 9/1 1:30 pm GEG - LHR. 2 stops 22h 50m Icelandair. Thu 9/5 9:25 pm LHR - GEG. Find United Airlines cheap flights from Washington, D.C. to London. Enjoy a Washington, D.C. to London modern flight experience in premium cabins with Wi-Fi. Prices were available within the past 7 days and start at $424 for one-way flights and $475 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Wed, Dec 4 - Tue, Dec 10. IAD. Washington.
Find cheap flights to London from $177. Round-trip. 1 adult. Economy. 0 bags. Add hotel. Sat 5/18. Sat 5/25. Search. Direct flights only. Search hundreds of travel sites at once for …. Seattle new york city
The two airlines most popular with KAYAK users for flights from Washington, D.C. to Paris are Delta and Air France. With an average price for the route of $945 and an overall rating of 8.0, Delta is the most popular choice. Air France is also a great choice for the route, with an average price of $1,029 and an overall rating of 7.5.Find flights to London Heathrow Airport from $230. Fly from Washington, D.C. on TAP AIR PORTUGAL, Virgin Atlantic, Delta and more. Search for London Heathrow Airport flights …As you can share your location, it will let you know easily how far you are in a straight line from any point of interest. Here are the steps to use it: Enter the address or the city of the first location. Enter the address or the city of the second location. Click on the "Calculate the distance" button. How far is it?Flying time from Seattle, WA to London, United Kingdom. The total flight duration from Seattle, WA to London, United Kingdom is 10 hours, 6 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing.4 airports. The best one-way flight to London from Washington, D.C. in the past 72 hours is $194. The best round-trip flight deal from Washington, D.C. to London found on momondo in the last 72 hours is $374. The fastest flight from Washington, D.C. to London takes 7h 05m. Direct flights go from Washington, D.C. to London every day.The cheapest month for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport is February, where tickets cost $609 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,134 and $1,039 respectively.1 stop. Sat, 7 Dec IAD - STN with Fly Play. 1 stop. from £276. Washington D.C.. £279 per passenger.Departing Thu, 5 Dec, returning Mon, 9 Dec.Return flight with Fly Play.Outbound indirect flight with Fly Play, departs from London Stansted on Thu, 5 Dec, arriving in Washington Dulles.Inbound indirect flight with Fly Play, departs from ...EDT (Eastern Daylight Time) is 4 hours behind GMT (Greenwich Mean Time) and 15 hours behind AEDT (Australian Eastern Daylight Time) 10:30 pm in Washington, DC, USA is 2:30 am in London, United Kingdom and is 1:30 pm in Sydney, Australia. Washington to London call time. Best time for a conference call or a meeting is between 8am-2pm in ...What is the cheapest flight from Washington, D.C. Dulles Intl Airport to London City Airport? In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London City Airport was $364 for a one-way ticket and $600 for a round-trip.Heathrow flight + hotel packages - economy flights. $243 Search for cheap flights deals from IAD to LHR (Washington Dulles Intl. to Heathrow). We offer cheap direct, non-stop flights including one way and roundtrip tickets.Travelmath provides an online flight time calculator for all types of travel routes. You can enter airports, cities, states, countries, or zip codes to find the flying time between any two points. The database uses the great circle distance and the average airspeed of a commercial airliner to figure out how long a typical flight would take.Prices were available within the past 7 days and start at $429 for one-way flights and $608 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals. One way. Roundtrip. Wed, Apr 24 - …Hail a London black cab or book a minicab for door-to-door convenience. BUSES AND COACHES Catch a bus or coach. Great value buses and coaches connect Heathrow directly to many UK destinations. London rail links Take the train. Frequent trains between Heathrow and central London, for connections to other UK train services. Train to Philadelphia, fly to London Heathrow • 11h 47m. Take the train from Washington Union Station to 30th Street Station. Fly from Philadelphia (PHL) to London Heathrow (LHR) PHL - LHR. £322 - £1,269. Quickest way to get there Cheapest option Distance between. One passenger plane, a Virgin Atlantic flight traveling from Washington to London was pushed to nearly 1300kph (800mph), faster than the speed of sound, according to the US National Weather Service.Flying time from Washington, DC to LHR. The total flight duration from Washington, DC to LHR is 7 hours, 49 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing. Your exact time may vary depending on wind speeds.The cheapest month for flights from London to Washington, D.C. is September, where tickets cost $572 on average. On the other hand, the most expensive months are July and August, where the average cost of tickets is $762 and $742 respectively..