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>

£161 CHEAP FLIGHTS from District of Columbia to London

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Flights Deals

Cheap Flight Deals 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.

Round-trip

One-way

Last minute

Direct

Recent return flight deals from District of Columbia to London

KAYAK's recommended return flight deals from the most popular airlines that fly from District of Columbia to London.

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

22:05 - 17:40IAD-LHR

14h 35m1 stop

19:30 - 19:59LHR-IAD

29h 29m1 stop

£315Scandinavian Airlines

Find Deal

Wed, 3 Sep - Sun, 7 Sep

22:05 - 21:35IAD-LHR

18h 30m2 stops

17:30 - 19:59LHR-IAD

31h 29m2 stops

£320Scandinavian Airlines

Find Deal

Tue, 23 Sep - Mon, 6 Oct

17:50 - 14:00IAD-LGW

15h 10m1 stop

10:35 - 20:50LGW-IAD

15h 15m1 stop

£386TAP AIR PORTUGAL

Find Deal

Wed, 8 Oct - Thu, 16 Oct

17:00 - 10:20IAD-LHR

12h 20m1 stop

06:00 - 15:20LHR-IAD

14h 20m1 stop

£389TAP AIR PORTUGAL

Find Deal

Fri, 10 Oct - Wed, 22 Oct

17:55 - 06:15IAD-LHR

7h 20mdirect

06:10 - 15:00LHR-IAD

13h 50m1 stop

£410Iberia

Find Deal

Mon, 11 Aug - Tue, 26 Aug

23:15 - 14:35IAD-LGW

10h 20m1 stop

15:40 - 22:10LGW-IAD

11h 30m1 stop

£412Icelandair

Find Deal

Mon, 1 Sep - Fri, 12 Sep

23:15 - 14:35IAD-LGW

10h 20m1 stop

15:40 - 22:10LGW-IAD

11h 30m1 stop

£412Icelandair

Find Deal

Mon, 25 Aug - Wed, 3 Sep

18:55 - 09:35DCA-LGW

9h 40m1 stop

12:10 - 20:51LGW-DCA

13h 41m1 stop

£415JetBlue

Find Deal

Mon, 13 Oct - Thu, 23 Oct

17:55 - 06:15IAD-LHR

7h 20mdirect

12:45 - 15:55LHR-IAD

8h 10mdirect

£425Iberia

Find Deal

Wed, 20 Aug - Wed, 27 Aug

16:45 - 09:35DCA-LGW

11h 50m1 stop

12:10 - 20:51LGW-DCA

13h 41m1 stop

£427JetBlue

Find Deal

Mon, 22 Sep - Fri, 3 Oct

Useful Info

Low season	February
High season	June
Cheapest flight	£161

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

Most popular time to fly (31% more expensive on average)

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

Verified travelerFlew with British AirwaysIAD-LHRApr 2025

Have no basis for comparison, but British Airlines does a good job.

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.

NancyFlew with British AirwaysIAD-LHRNov 2024

Looking at schedules and prices, I settled on BA years ago. I have yet to meet an employee who wasn't at the very least pleasant. Most go out of their way in difficult situations to be kind and cheery.

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.

Verified travelerFlew with British AirwaysIAD-LHRSept 2024

Process to get to connecting flights at Heathrow is convoluted/complicated.

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.

SaraFlew with British AirwaysIAD-LHRJul 2024

British Airways baggage policy was on top. Boarding was well organized and food was pretty good.

Verified travelerFlew with IberiaIAD-LHRAug 2024

British Airways offered an excellent service . Thank you !

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

Winchester

Croydon

Slough

Stansted

Chichester

Maidstone

Folkestone

Colchester

Crawley

Chelmsford

Hastings

Bedford

Watford

Basingstoke

Newbury

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 £6,539

Business Class flights to Londonfrom £5,361

Prem Econ Class flights to Londonfrom £1,369

Economy class flights to Londonfrom £428

£161 Find Cheap Flights from District of Columbia to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to London departing on 21/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.

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

Cheap Flight Deals 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

Cheapest flight

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?

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?

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

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

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

Cabin classes available on flights to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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

Find direct flights for London

Flights to other popular destinations

The most popular flights on KAYAK according to clicks in the last 2 weeks. Prices are the lowest found on KAYAK over the last 7 days. Price and availability are not guaranteed.

Flights from domestic origins to London

Flights from all regions of District of Columbia to London. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

Choose which airport to fly into in London

Find deals for your return flight