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Cheap flights from District of Columbia to London from $330

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to London departing on 4/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from District of Columbia to London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
8:20 pm - 4:00 pm
IAD
-
LHR
14h 40m
1 stop
Scandinavian Airlines Logo
6:40 am - 4:50 pm
LHR
-
IAD
15h 10m
2 stops
$522Scandinavian Airlines
Fri, May 1 - Sun, May 3
Icelandair Logo
8:30 pm - 8:20 pm
IAD
-
LHR
18h 50m
1 stop
Icelandair Logo
1:05 pm - 7:20 pm
LHR
-
IAD
11h 15m
1 stop
$523Icelandair
Sun, Apr 12 - Mon, Apr 20
TAP AIR PORTUGAL Logo
10:30 pm - 3:45 pm
IAD
-
LGW
12h 15m
1 stop
TAP AIR PORTUGAL Logo
9:20 pm - 9:00 pm
LGW
-
IAD
28h 40m
2 stops
$529TAP AIR PORTUGAL
Sun, Feb 22 - Tue, Mar 3
TAP AIR PORTUGAL Logo
5:05 pm - 9:45 am
IAD
-
LGW
11h 40m
1 stop
TAP AIR PORTUGAL Logo
9:15 pm - 3:05 pm
LGW
-
IAD
22h 50m
2 stops
$532TAP AIR PORTUGAL
Fri, Apr 17 - Mon, May 4
Multiple Airlines Logo
7:40 pm - 4:40 pm
IAD
-
STN
16h 00m
2 stops
Multiple Airlines Logo
6:00 am - 7:30 pm
STN
-
IAD
17h 30m
2 stops
$534Multiple Airlines
Wed, Mar 4 - Wed, Mar 11
Multiple Airlines Logo
8:30 pm - 4:50 pm
IAD
-
STN
15h 20m
2 stops
Multiple Airlines Logo
8:15 am - 7:20 pm
STN
-
IAD
16h 05m
2 stops
$535Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Air Canada Logo
6:00 am - 9:20 am
DCA
-
LHR
23h 20m
2 stops
Air Canada Logo
6:50 am - 9:56 pm
LHR
-
DCA
19h 06m
2 stops
$606Air Canada
Wed, Mar 11 - Mon, Mar 16
Air Canada Logo
6:00 am - 7:10 am
DCA
-
LHR
21h 10m
1 stop
Air Canada Logo
6:50 am - 9:56 pm
LHR
-
DCA
19h 06m
2 stops
$609Air Canada
Wed, Mar 11 - Mon, Mar 16
SWISS Logo
8:30 pm - 12:55 pm
IAD
-
LCY
11h 25m
1 stop
SWISS Logo
9:15 am - 5:40 pm
LCY
-
IAD
12h 25m
1 stop
$614SWISS
Tue, Mar 3 - Tue, Mar 10
SWISS Logo
8:30 pm - 5:05 pm
IAD
-
LCY
15h 35m
1 stop
SWISS Logo
9:15 am - 5:40 pm
LCY
-
IAD
12h 25m
1 stop
$618SWISS
Tue, Mar 3 - Tue, Mar 10

Scandinavian Airlines flights from District of Columbia to London

Our best Scandinavian Airlines deals on District of Columbia to London flight tickets
Scandinavian Airlines
May 1
IAD8:20 pmWashington, D.C. Dulles Intl
14h 40m
1 stop
LHR4:00 pmLondon Heathrow
May 3
LHR6:40 amLondon Heathrow
15h 10m
2 stops
IAD4:50 pmWashington, D.C. Dulles Intl
$522
Scandinavian Airlines
Feb 25
IAD8:30 pmWashington, D.C. Dulles Intl
14h 55m
2 stops
LHR4:25 pmLondon Heathrow
Mar 4
LHR6:40 amLondon Heathrow
15h 35m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
$557
Scandinavian Airlines
Apr 15
IAD8:20 pmWashington, D.C. Dulles Intl
16h 20m
1 stop
LHR5:40 pmLondon Heathrow
Apr 22
LHR6:40 amLondon Heathrow
15h 10m
2 stops
IAD4:50 pmWashington, D.C. Dulles Intl
$561

Icelandair flights from District of Columbia to London

Our best Icelandair deals on District of Columbia to London flight tickets
Icelandair
Apr 12
IAD8:30 pmWashington, D.C. Dulles Intl
18h 50m
1 stop
LHR8:20 pmLondon Heathrow
Apr 20
LHR1:05 pmLondon Heathrow
11h 15m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$523
Icelandair
Apr 16
IAD8:30 pmWashington, D.C. Dulles Intl
18h 50m
1 stop
LHR8:20 pmLondon Heathrow
Apr 25
LHR9:25 pmLondon Heathrow
26h 55m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$524
Icelandair
Apr 17
IAD8:30 pmWashington, D.C. Dulles Intl
13h 10m
1 stop
LGW2:40 pmLondon Gatwick
Apr 22
LGW3:40 pmLondon Gatwick
32h 40m
1 stop
IAD7:20 pmWashington, D.C. Dulles Intl
$525

momondo Fare Finder

 
Customize your flight search to find flights from District of Columbia to London that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from District of Columbia to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 5/1

8:20 pm-4:00 pm

1 stop14h 40m

London Heathrow

Sun 5/3

6:40 am-4:50 pm

2 stops15h 10m

$522

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 4/12

8:30 pm-8:20 pm

1 stop18h 50m

London Heathrow

Mon 4/20

1:05 pm-7:20 pm

1 stop11h 15m

$523

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Sun 2/22

10:30 pm-3:45 pm

1 stop12h 15m

London Gatwick

Tue 3/3

9:20 pm-9:00 pm

2 stops28h 40m

$529

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Fri 4/17

5:05 pm-9:45 am

1 stop11h 40m

London Gatwick

Mon 5/4

9:15 pm-3:05 pm

2 stops22h 50m

$532

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Wed 3/4

7:40 pm-4:40 pm

2 stops16h 00m

London Stansted

Wed 3/11

6:00 am-7:30 pm

2 stops17h 30m

$534

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Mon 4/13

8:30 pm-4:50 pm

2 stops15h 20m

London Stansted

Mon 4/20

8:15 am-7:20 pm

2 stops16h 05m

$535

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-9:20 am

2 stops23h 20m

London Heathrow

Mon 3/16

6:50 am-9:56 pm

2 stops19h 06m

$606

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 3/11

6:00 am-7:10 am

1 stop21h 10m

London Heathrow

Mon 3/16

6:50 am-9:56 pm

2 stops19h 06m

$609

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 3/3

8:30 pm-12:55 pm

1 stop11h 25m

London City

Tue 3/10

9:15 am-5:40 pm

1 stop12h 25m

$614

Washington, D.C.London

IAD - LCY

IADLCY

Washington, D.C. Dulles Intl

Tue 3/3

8:30 pm-5:05 pm

1 stop15h 35m

London City

Tue 3/10

9:15 am-5:40 pm

1 stop12h 25m

$618

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from District of Columbia to London

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to London?

The cheapest month to fly to London from District of Columbia is in September. Flight prices, which tend to average around $628, are often lower during this time because this is during the off-season. The month of January is another great option to travel to London, with average flight prices from District of Columbia averaging around $642.

What is the cheapest day to depart on your flight to London?

The cheapest day to depart from District of Columbia to London is on a Wednesday. Travelers who choose to depart for London on a Wednesday will often find tickets for as low as $758. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $886. These prices are subject to change though, so be sure to set up a Price Alert for flights to London.

What is the cheapest time of day to depart on your flight to London?

Flying to London from District of Columbia in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $807 when looking at flights departing in the afternoon. Flights to London are more costly in the evening, with an average ticket price of $813. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest District of Columbia to London flight route?

Fly from Baltimore/Washington to London Heathrow for the best District of Columbia - London flight prices

How far in advance should I book a flight to London?

You are more likely to see cheaper flights to London from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around $754 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from District of Columbia for as low as $706 on momondo.

What cabin class options are available on District of Columbia to London flights?

There are 4 cabin classes available to choose from on District of Columbia to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on District of Columbia to London flights?

You could potentially save up to 9% on your flight if you consider stops on a District of Columbia to London flight.

Cheap District of Columbia to London flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to London

Best Price Found

$374

Fastest flight time

7h 10m

Direct flights

Every day

Airports in London

6 airports
The best one-way flight to London from District of Columbia in the past 72 hours is $374. The best round-trip flight deal from District of Columbia to London found on momondo in the last 72 hours is $659.
The fastest flight from District of Columbia to London takes 7h 10m
Direct flights go from District of Columbia to London every day.
There are 6 airports in London. From District of Columbia there are direct flights to London Heathrow (LHR).
Search flight deals

  • When did momondo last update prices for flights from District of Columbia to London?

    Prices for flights from District of Columbia to London are updated daily.

  • How many operators does momondo search for flights from District of Columbia to London?

  • How old do you have to be to fly from District of Columbia to London?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from District of Columbia to London.

  • What documentation or ID do you need to fly to London?

    The travel and health documents required for your trip to London can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from District of Columbia to London?

Best airlines flying from District of Columbia to London

Compare and see reviews for airlines that fly from District of Columbia to London with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom $31Free CancellationRating
7.2
2,893 reviews
Search JetBlue flights
PLAYPriceFrom $374Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom $411Free CancellationRating
7.1
2,134 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $415Free CancellationRating
7.1
606 reviews
Search Icelandair flights
Air FrancePriceFrom $442Free CancellationRating
7.4
1,532 reviews
Search Air France flights
LufthansaPriceFrom $447Free CancellationRating
6.8
7,759 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom $454Free CancellationRating
7.3
1,677 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $462Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
Virgin AtlanticPriceFrom $471Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
KLMPriceFrom $488Free CancellationRating
7.7
1,448 reviews
Search KLM flights

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Crawley
Wembley
Dartford
Hayes
Croydon
Brentwood
Harrow
Watford
Cobham
Folkestone
Romford
Stansted
Richmond

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to London?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from District of Columbia to London. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from District of Columbia to London with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to London from District of Columbia with this policy.

How can momondo help me find flights from District of Columbia to London?

momondo helps you find the best flight between District of Columbia and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from District of Columbia to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from District of Columbia and alert you when they change.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport