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Cheap flights from District of Columbia to London from £157

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 6/10. 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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Cheap return flights

TAP AIR PORTUGAL Logo
17:30 - 09:50IAD-LGW
11h 20m1 stop
TAP AIR PORTUGAL Logo
16:35 - 15:15LGW-IAD
27h 40m1 stop
£310TAP AIR PORTUGAL
Find Deal
Thu, 27 Nov - Wed, 3 Dec
TAP AIR PORTUGAL Logo
23:30 - 15:30IAD-LHR
12h 00m1 stop
TAP AIR PORTUGAL Logo
12:25 - 21:00LHR-IAD
13h 35m1 stop
£311TAP AIR PORTUGAL
Find Deal
Wed, 29 Oct - Sun, 2 Nov
TAP AIR PORTUGAL Logo
17:30 - 09:50IAD-LGW
11h 20m1 stop
TAP AIR PORTUGAL Logo
10:40 - 21:00LGW-IAD
15h 20m1 stop
£312TAP AIR PORTUGAL
Find Deal
Tue, 2 Dec - Sun, 7 Dec
Scandinavian Airlines Logo
22:05 - 21:40IAD-LHR
18h 35m1 stop
Scandinavian Airlines Logo
21:05 - 19:59LHR-IAD
27h 54m2 stops
£333Scandinavian Airlines
Find Deal
Sat, 11 Oct - Mon, 13 Oct
Scandinavian Airlines Logo
22:05 - 12:55IAD-LHR
33h 50m2 stops
Scandinavian Airlines Logo
07:05 - 19:59LHR-IAD
17h 54m2 stops
£340Scandinavian Airlines
Find Deal
Fri, 19 Sep - Mon, 22 Sep
Logo
09:45 - 12:00IAD-STN
21h 15m2 stops
Logo
06:30 - 09:38STN-IAD
32h 08m2 stops
£348
Find Deal
Tue, 7 Oct - Wed, 15 Oct
Logo
09:40 - 12:00DCA-STN
21h 20m2 stops
Logo
06:30 - 18:04STN-DCA
16h 34m2 stops
£348
Find Deal
Tue, 7 Oct - Wed, 15 Oct
United Airlines Logo
17:31 - 09:20IAD-LHR
10h 49m1 stop
United Airlines Logo
06:50 - 14:25LHR-IAD
12h 35m1 stop
£352United Airlines
Find Deal
Sun, 17 Aug - Tue, 26 Aug
United Airlines Logo
13:20 - 06:20IAD-LHR
12h 00m1 stop
United Airlines Logo
07:45 - 14:25LHR-IAD
11h 40m1 stop
£355United Airlines
Find Deal
Sun, 17 Aug - Tue, 26 Aug
Aer Lingus Logo
21:00 - 12:40IAD-LHR
10h 40m1 stop
Aer Lingus Logo
13:25 - 19:30LHR-IAD
11h 05m1 stop
£357Aer Lingus
Find Deal
Tue, 19 Aug - Tue, 26 Aug

United Airlines flights from District of Columbia to London

Our best United Airlines deals on District of Columbia to London flight tickets
United Airlines
17 Aug
IAD17:31Washington, D.C. Dulles Intl
10h 49m
1 stop
LHR09:20London Heathrow
26 Aug
LHR06:50London Heathrow
12h 35m
1 stop
IAD14:25Washington, D.C. Dulles Intl
£352
Find similar
United Airlines
17 Aug
IAD13:20Washington, D.C. Dulles Intl
12h 00m
1 stop
LHR06:20London Heathrow
26 Aug
LHR07:45London Heathrow
11h 40m
1 stop
IAD14:25Washington, D.C. Dulles Intl
£354
Find similar
United Airlines
17 Aug
IAD15:39Washington, D.C. Dulles Intl
11h 41m
1 stop
LHR08:20London Heathrow
26 Aug
LHR06:50London Heathrow
12h 35m
1 stop
IAD14:25Washington, D.C. Dulles Intl
£355
Find similar

TAP AIR PORTUGAL flights from District of Columbia to London

Our best TAP AIR PORTUGAL deals on District of Columbia to London flight tickets
TAP AIR PORTUGAL
27 Nov
IAD17:30Washington, D.C. Dulles Intl
11h 20m
1 stop
LGW09:50London Gatwick
3 Dec
LGW16:35London Gatwick
27h 40m
1 stop
IAD15:15Washington, D.C. Dulles Intl
£310
Find similar
TAP AIR PORTUGAL
29 Oct
IAD23:30Washington, D.C. Dulles Intl
12h 00m
1 stop
LHR15:30London Heathrow
2 Nov
LHR12:25London Heathrow
13h 35m
1 stop
IAD21:00Washington, D.C. Dulles Intl
£311
Find similar
TAP AIR PORTUGAL
2 Dec
IAD17:30Washington, D.C. Dulles Intl
11h 20m
1 stop
LGW09:50London Gatwick
7 Dec
LGW10:40London Gatwick
15h 20m
1 stop
IAD21:00Washington, D.C. Dulles Intl
£312
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 8 August 2025.
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 - LGW

IADLGW

Washington, D.C. Dulles Intl

Thu 27/11

17:30-09:50

1 stop11h 20m

London Gatwick

Wed 3/12

16:35-15:15

1 stop27h 40m

£310

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 29/10

23:30-15:30

1 stop12h 00m

London Heathrow

Sun 2/11

12:25-21:00

1 stop13h 35m

£311

Washington, D.C.London

IAD - LGW

IADLGW

Washington, D.C. Dulles Intl

Tue 2/12

17:30-09:50

1 stop11h 20m

London Gatwick

Sun 7/12

10:40-21:00

1 stop15h 20m

£312

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 11/10

22:05-21:40

1 stop18h 35m

London Heathrow

Mon 13/10

21:05-19:59

2 stops27h 54m

£333

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 19/9

22:05-12:55

2 stops33h 50m

London Heathrow

Mon 22/9

07:05-19:59

2 stops17h 54m

£340

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

Tue 7/10

09:45-12:00

2 stops21h 15m

London Stansted

Wed 15/10

06:30-09:38

2 stops32h 08m

£348

Washington, D.C.London

DCA - STN

DCASTN

Washington, D.C. Reagan-National

Tue 7/10

09:40-12:00

2 stops21h 20m

London Stansted

Wed 15/10

06:30-18:04

2 stops16h 34m

£348

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 17/8

17:31-09:20

1 stop10h 49m

London Heathrow

Tue 26/8

06:50-14:25

1 stop12h 35m

£352

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 17/8

13:20-06:20

1 stop12h 00m

London Heathrow

Tue 26/8

07:45-14:25

1 stop11h 40m

£354

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 19/8

21:00-12:40

1 stop10h 40m

London Heathrow

Tue 26/8

13:25-19:30

1 stop11h 05m

£357

Flights are sorted by cheapest return 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 January. Flight prices, which tend to average around £480, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from District of Columbia averaging around £488.

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

Our data shows that Wednesday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £539. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from District of Columbia to London for around £626.

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

The cheapest time of day to fly to London is in the evening when flights can be purchased for as low as £567. Flights at midday are often more expensive, with an average ticket price of £1,428.

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

Fly from Washington, D.C. Dulles Intl 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 £575 when searching weeks before you fly. 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 £526 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.

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

£157

Fastest flight time

7h 10m

Direct flights

Every day

Airports in London

5 airports
The best one-way flight to London from District of Columbia in the past 72 hours is £157. The best return flight deal from District of Columbia to London found on momondo in the last 72 hours is £310.
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 5 airports near London: London City (LCY), London Heathrow (LHR), London Luton (LTN), London Stansted (STN), London Gatwick (LGW)
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 refresh 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 that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your London trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • 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
LufthansaPriceFrom £309Free CancellationRating
6.8
7,296 reviews
Search Lufthansa flights
IcelandairPriceFrom £358Free CancellationRating
7.0
524 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £379Free CancellationRating
7.4
657 reviews
Search Virgin Atlantic flights
Air FrancePriceFrom £397Free CancellationRating
7.4
1,466 reviews
Search Air France flights
British AirwaysPriceFrom £408Free CancellationRating
6.6
7,251 reviews
Search British Airways flights
IberiaPriceFrom £415Free CancellationRating
7.0
2,866 reviews
Search Iberia flights
United AirlinesPriceFrom £456Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights
KLMPriceFrom £460Free CancellationRating
7.8
1,382 reviews
Search KLM flights
American AirlinesPriceFrom £495Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Slough
Maidstone
Southend-on-Sea
Canterbury
Gatwick
Ipswich
Ilford
Guildford
Colchester
Dartford
Hounslow
Worthing
Dover
Chelmsford
Hayes
Winchester
Bedford

Why use momondo?

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

It is quick and easy to find District of Columbia to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.

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

Yes. momondo allows you to filter the results for District of Columbia to London flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to London from District of Columbia. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Price alerts on flights to London from District of Columbia are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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