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Flights from Washington (WAS) to London (LON)

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Washington to London Flights

F9

International

20:05

Ontario

10 Dec 2025
7h 20m

22:18

Orlando

25 Dec 2025
Book Now
F9

International

20:05

Ontario

10 Dec 2025
7h 20m

22:18

Orlando

25 Dec 2025
Book Now
F9

International

20:05

Ontario

10 Dec 2025
7h 20m

22:18

Orlando

25 Dec 2025
Book Now
F9

International

20:05

Ontario

10 Dec 2025
7h 20m

22:18

Orlando

25 Dec 2025
Book Now
F9

International

20:05

Ontario

10 Dec 2025
7h 20m

22:18

Orlando

25 Dec 2025
Book Now
F9

International

20:05

Ontario

10 Dec 2025
7h 20m

22:18

Orlando

25 Dec 2025
Book Now

Cheap Flights from Washington to London

Experience London’s historic architecture, afternoon tea, and vibrant city life. Download the Cheapfaremart app now to compare fares and secure your Washington to London flight today.

Best Time to Visit London

  • High Season (May-September): Enjoy long daylight hours, open-air events, and London’s summer festivals. Flight prices increase quickly, so booking early is recommended.
  • Low Season (November-March): Enjoy London’s cafés, visit museums with fewer crowds, and benefit from lower fares. This period is ideal for budget-conscious travelers.
  • Shoulder Season (April and October): Experience mild weather, fewer tourists, and strong value. These months offer comfort and savings for Washington to London flights.

Airports and Airlines: Travel Logistics

Flights depart from Washington Dulles International Airport (IAD) or nearby airports and arrive at London Heathrow Airport (LHR) or London Gatwick Airport (LGW). Both airports provide fast train, bus, or coach connections to central London.
British Airways, Virgin Atlantic, United Airlines, American Airlines, and Lufthansa offer nonstop and connecting flights between Washington and London.

Travel Classes

  • Economy: One carry-on (7-10 kg), one checked bag (up to 23 kg), standard seating, in-flight entertainment.
  • Premium Economy: Wider seats, more legroom, priority boarding, enhanced meals.
  • Business: Lie-flat seats, gourmet meals, premium drinks, lounge access, two checked bags.

Flight Time from Washington to London

A nonstop flight from Washington to London typically takes about 7 hours and covers approximately 3,650 miles (5,875 km). Connecting flights may require 9 to 12 hours, depending on the number of layovers.

FAQs

1. What’s the cheapest month to fly from Washington to London?
January and February usually have the lowest fares and fewer crowds. When you decide to fly from Washington DC to London, book early on Cheapfaremart for the best prices.
2. Which airlines offer nonstop flights from Washington to London?
British Airways, United Airlines, and Virgin Atlantic offer nonstop service from DCA to London.
3. How much baggage can I bring on an economy ticket?
Most airlines allow one carry-on (7-10 kg) and one checked bag (up to 23 kg). Confirm your airline’s policy.
4. What are the fare rules for Washington-London flights?
  • Basic: Non-refundable. Includes one personal item. No checked bags or changes allowed. Please check with the airlines regarding flights from Washington Dulles to London Heathrow. 
  • Standard: Non-refundable. Includes one checked bag. Changes allowed for a fee.
  • Flex: Partially refundable. Includes two checked bags. Free date changes (fare difference may apply).
  • Business: Fully refundable. Includes two checked bags. Free changes and cancellations. Lounge access included.
5. Do I need a visa to visit London?
U.S. citizens may visit the U.K. visa-free for up to six months. Please ensure your passport is valid for the entire duration of your stay.

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“Terms and Conditions”

Discounts and savings on airfares are calculated based on several factors, including comparison of fares across more than 500 airlines. The quoted pricing reflects our best available fare at the time of search. Coupon codes are valid for applicable discounts on our service fees for eligible bookings. Additional terms may apply to specific offers, which will be disclosed at the time of booking.

Fare Disclosures

  • Unless otherwise specified, all listed fares are for round-trip travel and include applicable fuel surcharges, taxes, fees, and our service fees.

  • Displayed fares are based on historical pricing data and are subject to change.

  • Tickets are nonrefundable, nontransferable, name changes are not permitted, and subject to airline’s fare rules and restrictions.

  • Availability of the quoted fare is more likely on travel dates that fall on Tuesdays, Wednesdays, and Thursdays.

  • These fares may also require an advance purchase of up to 21 days and/or a Saturday night stay.

  • Blackout dates may apply, especially during peak travel periods or holidays. Travel on weekends or holidays may be subject to additional surcharges.

For further details, please review our full Terms and Conditions.

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