How does KAYAK find such low prices on flights from District of Columbia to London?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to London.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to London?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.

What is the Hacker Fare option on flights from District of Columbia to London?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to District of Columbia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to London?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

£241 CHEAP FLIGHTS from District of Columbia to London

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Flight Deals

Cheap Flights from District of Columbia to London

Discover the best prices for you by selecting your travel dates on KAYAK.

Return

One-way

Last minute

Direct

Recent return flight deals from District of Columbia to London

Sun, 20 Sep - Tue, 29 Sep

18:19 - 10:50DCA Washington, D.C. Reagan-National-LHR London Heathrow

11h 31m1 stop Chicago O'Hare Intl

14:10 - 23:10LHR London Heathrow-DCA Washington, D.C. Reagan-National

14h 00m1 stop New York John F Kennedy Intl

£503Finnair

Tue, 20 Oct - Tue, 27 Oct

20:30 - 16:00IAD Washington, D.C. Dulles Intl-LHR London Heathrow

14h 30m2 stops Reykjavik Keflavik Intl Kastrup Copenhagen

06:40 - 19:30LHR London Heathrow-IAD Washington, D.C. Dulles Intl

16h 50m2 stops Kastrup Copenhagen Reykjavik Keflavik Intl

£503Multiple Airlines

Wed, 9 Dec - Wed, 16 Dec

18:05 - 06:15IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mdirect

07:35 - 16:20LHR London Heathrow-IAD Washington, D.C. Dulles Intl

13h 45m1 stop Madrid Barajas

£506British Airways

Tue, 8 Dec - Tue, 15 Dec

21:45 - 10:00IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 15mdirect

07:30 - 16:20LHR London Heathrow-IAD Washington, D.C. Dulles Intl

13h 50m1 stop Madrid Barajas

£506British Airways

Tue, 29 Sep - Wed, 28 Oct

20:30 - 11:55IAD Washington, D.C. Dulles Intl-LHR London Heathrow

10h 25m1 stop Reykjavik Keflavik Intl

20:35 - 19:30LHR London Heathrow-IAD Washington, D.C. Dulles Intl

26h 55m1 stop Reykjavik Keflavik Intl

£511Icelandair

Mon, 26 Oct - Sat, 31 Oct

20:40 - 10:50IAD Washington, D.C. Dulles Intl-LHR London Heathrow

10h 10m1 stop Reykjavik Keflavik Intl

12:15 - 19:30LHR London Heathrow-IAD Washington, D.C. Dulles Intl

11h 15m1 stop Reykjavik Keflavik Intl

£511Icelandair

Sun, 20 Sep - Tue, 29 Sep

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

09:55 - 15:35LHR London Heathrow-IAD Washington, D.C. Dulles Intl

10h 40m1 stop Amsterdam Schiphol

£520Virgin Atlantic

Fri, 6 Nov - Fri, 20 Nov

19:30 - 07:55IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 25mdirect

08:40 - 15:55LHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 15m1 stop Amsterdam Schiphol

£522Virgin Atlantic

Mon, 5 Oct - Tue, 13 Oct

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

08:45 - 16:45LHR London Heathrow-IAD Washington, D.C. Dulles Intl

13h 00m1 stop Zurich

£527United Airlines

Tue, 20 Oct - Mon, 26 Oct

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

13:45 - 18:00LHR London Heathrow-IAD Washington, D.C. Dulles Intl

32h 15m1 stop Zurich

£527United Airlines

Recent last minute flight deals from District of Columbia to London

Tue, 15 Sep - Tue, 22 Sep

21:30 - 09:50IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 20mdirect

11:30 - 18:50LHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 20m1 stop Madrid Barajas

£519British Airways

Tue, 15 Sep - Wed, 7 Oct

20:25 - 13:35IAD Washington, D.C. Dulles Intl-LHR London Heathrow

12h 10m1 stop Madrid Barajas

07:50 - 15:30LHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 40m1 stop Madrid Barajas

£522Iberia

Tue, 15 Sep - Tue, 22 Sep

20:25 - 18:55IAD Washington, D.C. Dulles Intl-LHR London Heathrow

17h 30m1 stop Madrid Barajas

11:30 - 18:50LHR London Heathrow-IAD Washington, D.C. Dulles Intl

12h 20m1 stop Madrid Barajas

£522Iberia

Tue, 15 Sep - Tue, 22 Sep

22:25 - 10:50IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 25mdirect

12:35 - 15:55LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 20mdirect

£534British Airways

Mon, 14 Sep - Wed, 20 Jan

20:30 - 14:40IAD Washington, D.C. Dulles Intl-LGW London Gatwick

13h 10m1 stop Reykjavik Keflavik Intl

11:55 - 18:30LGW London Gatwick-IAD Washington, D.C. Dulles Intl

11h 35m1 stop Reykjavik Keflavik Intl

£624Icelandair

Mon, 14 Sep - Fri, 22 Jan

20:30 - 14:40IAD Washington, D.C. Dulles Intl-LGW London Gatwick

13h 10m1 stop Reykjavik Keflavik Intl

11:55 - 18:30LGW London Gatwick-IAD Washington, D.C. Dulles Intl

11h 35m1 stop Reykjavik Keflavik Intl

£624Icelandair

Mon, 14 Sep - Mon, 21 Sep

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

20:55 - 15:35LHR London Heathrow-IAD Washington, D.C. Dulles Intl

23h 40m1 stop Amsterdam Schiphol

£750Virgin Atlantic

Mon, 14 Sep - Tue, 22 Sep

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

08:40 - 15:35LHR London Heathrow-IAD Washington, D.C. Dulles Intl

11h 55m1 stop Amsterdam Schiphol

£759Delta

Mon, 14 Sep - Fri, 25 Sep

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

08:40 - 15:35LHR London Heathrow-IAD Washington, D.C. Dulles Intl

11h 55m1 stop Amsterdam Schiphol

£759Delta

Fri, 11 Sep - Fri, 18 Sep

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

09:55 - 15:35LHR London Heathrow-IAD Washington, D.C. Dulles Intl

10h 40m1 stop Amsterdam Schiphol

£784Virgin Atlantic

Recent direct flight deals from District of Columbia to London

Mon, 9 Nov - Tue, 24 Nov

18:05 - 06:15IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mdirect

16:25 - 19:55LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mdirect

£523Finnair

Tue, 8 Dec - Tue, 15 Dec

18:05 - 06:15IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mdirect

12:15 - 15:40LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mdirect

£523Finnair

Sat, 7 Nov - Thu, 19 Nov

18:55 - 07:20IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 25mdirect

13:20 - 17:00LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 40mdirect

£527Virgin Atlantic

Fri, 6 Nov - Fri, 20 Nov

19:30 - 07:55IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 25mdirect

14:00 - 17:40LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 40mdirect

£527Virgin Atlantic

Tue, 9 Mar - Tue, 16 Mar

18:05 - 06:15IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 10mdirect

12:15 - 16:40LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 25mdirect

£530British Airways

Wed, 24 Feb - Fri, 5 Mar

21:55 - 10:10IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 15mdirect

16:25 - 19:55LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 30mdirect

£530British Airways

Mon, 19 Oct - Wed, 9 Dec

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

13:20 - 17:00LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 40mdirect

£539Delta

Tue, 13 Oct - Fri, 4 Dec

22:05 - 10:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

14:00 - 17:40LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 40mdirect

£539Delta

Tue, 29 Dec - Fri, 15 Jan

18:20 - 06:40IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 20mdirect

16:20 - 20:15LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 55mdirect

£539United Airlines

Wed, 30 Dec - Wed, 13 Jan

22:15 - 10:50IAD Washington, D.C. Dulles Intl-LHR London Heathrow

7h 35mdirect

16:20 - 20:15LHR London Heathrow-IAD Washington, D.C. Dulles Intl

8h 55mdirect

£539United Airlines

Useful Info

Low season	February
High season	December

Best time to beat the crowds (25% less expensive on average)

Most popular time to fly (21% more expensive on average)

DeeFlew with United Airlines-Feb 2025

For me the best route to LHR is the late night departure on UAL. The flight is often roughly 6.5 hours so I skip dinner, use an eye mask and earplugs and try to sleep.

EllenFlew with British Airways-Oct 2024

Do not check your bag if at all possible, especially if you have a connecting flight. Your bag will not make it.

CraigFlew with United Airlines-Jun 2024

Get to beginning of boarding group early. Bring as little on board as possible due to small overhead bin space.

How does KAYAK find such low prices on flights from District of Columbia to London?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from District of Columbia to London.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from District of Columbia to London?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from District of Columbia is likely to change within 7 days, so travelers know whether to wait or book now.
What is the Hacker Fare option on flights from District of Columbia to London?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London with an airline and back to District of Columbia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from District of Columbia to London?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from District of Columbia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Gatwick

Eastbourne

Milton Keynes

Hounslow

Luton

Southend-on-Sea

Newport

Folkestone

Winchester

Slough

Croydon

Stansted

Colchester

Chichester

Crawley

Maidstone

Chelmsford

Hastings

Bedford

Richmond

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£241 Find Cheap Flights from District of Columbia to London – Compare and Save

Cheap Flights from District of Columbia to London

Recent return flight deals from District of Columbia to London

Recent one-way flight deals from District of Columbia to London

Recent last minute flight deals from District of Columbia to London

Recent direct flight deals from District of Columbia to London

Good to know - Cheap tickets from District of Columbia to London

Low season

High season

Flights from District of Columbia to London: the best tips from KAYAK users

FAQs for booking flights from District of Columbia to London

Travelling to a place near London?

More options for your flight to London

Complete your trip to London with a hotel stay or car hire

Cabin class types available on flights to District of Columbia

Find direct flights for London

Flights from domestic origins to London

Choose which airport to fly into in London

Flights to other popular destinations

Find deals for your return flight