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 round-trip 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>

$370 CHEAP FLIGHTS from District of Columbia to London

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

...and more

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41,299,237 searches in the past 7 days on KAYAK

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Filter your dealsChoose cabin class, free Wi-Fi and more.

Cheapest round-trip

$527

Typical prices: $513-$653

Icelandair

Mon 1/19Tue 1/27

IAD - LGW • 1 stop

Cheapest non-stop

$565

Typical prices: $633-$832

Virgin Atlantic

Tue 3/17Tue 3/24

IAD - LHR • Non-stop

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We hope you love your trip to London!

Flight Deals

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 round-trip 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 round-trip flight deals from District of Columbia to London

Mon, Jan 19 - Tue, Jan 27

7:40 pm - 10:55 am

IAD

LGW

10h 15m1 stop

11:55 am - 6:30 pm

LGW

IAD

11h 35m1 stop

$527Icelandair

Thu, Jan 29 - Wed, Feb 4

5:30 pm - 8:40 pm

IAD

LGW

22h 10m2 stops

10:40 am - 9:00 pm

LGW

IAD

15h 20m1 stop

$529TAP AIR PORTUGAL

Wed, Apr 29 - Wed, May 6

8:40 pm - 3:25 pm

IAD

LTN

13h 45m1 stop

6:15 am - 3:45 pm

LTN

IAD

14h 30m1 stop

$532Multiple Airlines

Wed, Mar 4 - Sat, Mar 14

9:45 am - 10:40 pm

IAD

STN

31h 55m2 stops

6:00 pm - 4:50 pm

STN

IAD

26h 50m2 stops

$533Multiple Airlines

Sat, Mar 14 - Wed, Mar 18

9:30 pm - 4:00 pm

IAD

LHR

14h 30m1 stop

10:20 am - 6:15 pm

LHR

IAD

11h 55m1 stop

$534Scandinavian Airlines

Wed, Feb 4 - Mon, Feb 9

8:30 pm - 5:40 pm

IAD

LHR

16h 10m1 stop

7:05 am - 5:15 pm

LHR

IAD

15h 10m2 stops

$537Scandinavian Airlines

Mon, Feb 16 - Tue, Feb 24

8:20 am - 7:30 am

DCA

LGW

18h 10m1 stop

11:20 am - 11:42 pm

LGW

DCA

17h 22m1 stop

$560British Airways

Tue, Mar 3 - Tue, Mar 17

8:20 am - 7:30 am

DCA

LGW

18h 10m1 stop

11:20 am - 11:46 pm

LGW

DCA

16h 26m1 stop

$565British Airways

Sun, Jan 18 - Tue, Jan 27

11:05 am - 7:10 am

DCA

LHR

15h 05m1 stop

1:25 pm - 9:58 pm

LHR

DCA

13h 33m1 stop

$567Air Canada

Sun, Feb 22 - Sun, Mar 1

4:15 pm - 7:10 am

DCA

LHR

9h 55m1 stop

12:00 pm - 12:19 pm

LHR

DCA

29h 19m1 stop

$568Air Canada

Useful Info

Low season	January
High season	July
Cheapest flight	$370

Best time to beat the crowds with an average 13% drop in price.

Most popular time to fly with an average 8% increase in price.

Flight from Washington Dulles Airport to London Stansted Airport

DeeFlew with United Airlines

IAD

LHR

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

IAD

LHR

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

IAD

LHR

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 round-trip 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.

Hounslow

Slough

Wembley

Hayes

Richmond

Luton

Ilford

Crawley

Watford

Guildford

Kingston upon Thames

Eastbourne

Colchester

St. Albans

Ipswich

Bedford

Twickenham

Harrow

Barnet

Hastings

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 $4,187

Business Class flights to Londonfrom $2,474

Prem Econ Class flights to Londonfrom $1,273

Economy Class flights to Londonfrom $543

$370 Find Cheap Flights from District of Columbia to London

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

Everything you should know

Cheap Flights from District of Columbia to London

Recent round-trip 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

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 round-trip 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.

Traveling 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 rental

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