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>

$211 CHEAP FLIGHTS from District of Columbia to London

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

Round-trip

One-way

Last minute

Direct

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

KAYAK's recommended round-trip 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.

10:05 pm - 5:40 pmIAD-LHR

14h 35m1 stop

7:30 pm - 7:59 pmLHR-IAD

29h 29m1 stop

$423Scandinavian Airlines

Find Deal

Wed, Sep 3 - Sun, Sep 7

10:05 pm - 9:35 pmIAD-LHR

18h 30m2 stops

5:30 pm - 7:59 pmLHR-IAD

31h 29m2 stops

$429Scandinavian Airlines

Find Deal

Tue, Sep 23 - Mon, Oct 6

5:00 pm - 9:45 amIAD-LGW

11h 45m1 stop

4:25 pm - 3:20 pmLGW-IAD

27h 55m1 stop

$517TAP AIR PORTUGAL

Find Deal

Fri, Oct 10 - Tue, Oct 21

5:00 pm - 10:20 amIAD-LHR

12h 20m1 stop

6:00 am - 3:20 pmLHR-IAD

14h 20m1 stop

$521TAP AIR PORTUGAL

Find Deal

Fri, Oct 10 - Wed, Oct 22

10:40 pm - 11:05 amIAD-LHR

7h 25mnonstop

6:10 am - 3:00 pmLHR-IAD

13h 50m1 stop

$550Iberia

Find Deal

Wed, Aug 20 - Tue, Aug 26

5:55 pm - 6:15 amIAD-LHR

7h 20mnonstop

6:15 am - 3:00 pmLHR-IAD

13h 45m1 stop

$551Iberia

Find Deal

Tue, Aug 26 - Wed, Sep 3

8:30 pm - 2:40 pmIAD-LGW

13h 10m1 stop

2:40 pm - 7:20 pmLGW-IAD

32h 40m1 stop

$551Icelandair

Find Deal

Fri, Oct 17 - Sun, Oct 26

8:30 pm - 2:35 pmIAD-LGW

13h 05m1 stop

3:40 pm - 10:10 pmLGW-IAD

11h 30m1 stop

$557Icelandair

Find Deal

Mon, Aug 25 - Wed, Sep 3

6:55 pm - 9:35 amDCA-LGW

9h 40m1 stop

12:10 pm - 8:51 pmLGW-DCA

13h 41m1 stop

$557JetBlue

Find Deal

Mon, Oct 13 - Thu, Oct 23

4:45 pm - 9:35 amDCA-LGW

11h 50m1 stop

12:10 pm - 8:51 pmLGW-DCA

13h 41m1 stop

$572JetBlue

Find Deal

Mon, Sep 22 - Fri, Oct 3

Useful Info

Low season	February
High season	June
Cheapest flight	$211

Best time to beat the crowds with an average 11% drop in price.

Most popular time to fly with an average 31% increase in price.

Flight from Washington Dulles Airport 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-LHRSep 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 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.

Ilford

Deal

Southall

St. Albans

Folkestone

Bishop's Stortford

Barnet

Enfield

Ascot

Ely

Woodstock

Edgware

Rye

Weybridge

Alton

Surbiton

Dorking

Hatfield

Cobham

Burford

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 $4,909

Business Class flights to Londonfrom $2,445

Prem Econ Class flights to Londonfrom $1,500

Economy Class flights to Londonfrom $540

$211 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 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