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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

£149 CHEAP FLIGHTS from District of Columbia to London

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Cheap Flights from District of Columbia to London

Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from District of Columbia to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

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

Round-trip

One-way

Last minute

Direct

Recent return flight deals from District of Columbia to London

Wed, 10 Sep - Sun, 14 Sep

20:45 - 13:00IAD-LHR

11h 15m1 stop

18:40 - 16:15LHR-IAD

26h 35m1 stop

£226SWISS

Find Deal

Thu, 27 Nov - Wed, 3 Dec

17:30 - 09:50IAD-LGW

11h 20m1 stop

16:35 - 15:15LGW-IAD

27h 40m1 stop

£314TAP AIR PORTUGAL

Find Deal

Fri, 26 Sep - Sun, 28 Sep

22:05 - 16:00IAD-LHR

12h 55m1 stop

06:40 - 19:59LHR-IAD

18h 19m2 stops

£336Scandinavian Airlines

Find Deal

Sat, 20 Sep - Mon, 22 Sep

22:05 - 18:30IAD-LHR

15h 25m1 stop

06:40 - 19:59LHR-IAD

18h 19m2 stops

£337Scandinavian Airlines

Find Deal

Tue, 23 Sep - Mon, 6 Oct

09:45 - 12:00IAD-STN

21h 15m2 stops

21:30 - 19:25STN-IAD

26h 55m2 stops

£343

Find Deal

Sun, 10 Aug - Tue, 19 Aug

17:50 - 06:20IAD-LHR

7h 30mdirect

06:15 - 19:15LHR-IAD

18h 00m1 stop

£350Virgin Atlantic

Find Deal

Tue, 23 Sep - Mon, 6 Oct

10:20 - 12:00IAD-STN

20h 40m3 stops

21:30 - 19:25STN-IAD

26h 55m2 stops

£352

Find Deal

Sun, 10 Aug - Tue, 19 Aug

17:31 - 10:10IAD-LHR

11h 39m1 stop

07:45 - 14:25LHR-IAD

11h 40m1 stop

£356United Airlines

Find Deal

Sun, 10 Aug - Tue, 19 Aug

22:20 - 10:40IAD-LHR

7h 20mdirect

07:45 - 14:25LHR-IAD

11h 40m1 stop

£358United Airlines

Find Deal

Sun, 21 Sep - Tue, 30 Sep

17:50 - 06:20IAD-LHR

7h 30mdirect

09:00 - 16:20LHR-IAD

12h 20m1 stop

£366Virgin Atlantic

Find Deal

Useful Info

Low season	February
High season	April
Cheapest flight	£149

Best time to beat the crowds (11% less expensive on average)

Most popular time to fly and prices are also 3% lower on average.

Flight from Washington, D.C. to London Gatwick Airport

DeeFlew with United AirlinesIAD-LHRFeb 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 AirwaysIAD-LHROct 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 AirlinesIAD-LHRJun 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

Milton Keynes

Eastbourne

Luton

Southend-on-Sea

Slough

Winchester

Croydon

Stansted

Folkestone

Chichester

Maidstone

Colchester

Chelmsford

Crawley

Bedford

Hastings

Watford

Basingstoke

Royal Tunbridge Wells

Everything you need to know for your flight to London

Cabin class

Complete your trip

Direct flights

Flights to other cities

Origins

Other airports

Return flight deals

Cabin class types available on flights to District of Columbia

First Class flights to Londonfrom £6,626

Business Class flights to Londonfrom £2,448

Prem Econ Class flights to Londonfrom £1,158

Economy class flights to Londonfrom £315

Not what you’re looking for? Find thousands of other hotels, flights, car hires and package deals with KAYAK.

£149 Find Cheap Flights from District of Columbia to London

KAYAK searches hundreds of travel sites at once for deals on flights to London

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

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

FAQs for booking flights from District of Columbia to London

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.

Travelling to a place near London?

Everything you need to know for your flight to London

Cabin class types available on flights to District of Columbia

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

Find direct flights for London

Flights to other popular destinations

Flights from domestic origins to London

Choose which airport to fly into in London

Find deals for your return flight