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Cheap flights from the United Kingdom to Washington, D.C. from £202

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to Washington, D.C. departing on 1/10. 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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Find the cheapest flights from the United Kingdom to Washington, D.C.

Recent return flight deals from the United Kingdom to Washington, D.C.

PLAY Logo
11:40 - 17:40STN-BWI
11h 00m1 stop
PLAY Logo
18:50 - 10:40BWI-STN
10h 50m1 stop
£312PLAY
Find Deal
Wed, 24 Sep - Tue, 30 Sep
PLAY Logo
11:40 - 17:40STN-BWI
11h 00m1 stop
PLAY Logo
18:50 - 10:40BWI-STN
10h 50m1 stop
£322PLAY
Find Deal
Fri, 26 Sep - Tue, 30 Sep
Icelandair Logo
13:05 - 22:10LHR-IAD
14h 05m1 stop
Icelandair Logo
23:15 - 11:55IAD-LHR
31h 40m1 stop
£356Icelandair
Find Deal
Fri, 19 Sep - Fri, 26 Sep
Icelandair Logo
15:40 - 22:10LGW-IAD
11h 30m1 stop
Icelandair Logo
23:15 - 14:40IAD-LGW
10h 25m1 stop
£386Icelandair
Find Deal
Sat, 6 Sep - Sat, 13 Sep
Aer Lingus Logo
09:50 - 15:50LHR-IAD
11h 00m1 stop
Aer Lingus Logo
17:20 - 08:00IAD-LHR
9h 40m1 stop
£389Aer Lingus
Find Deal
Wed, 3 Sep - Wed, 24 Sep
Aer Lingus Logo
07:40 - 15:50LHR-IAD
13h 10m1 stop
Aer Lingus Logo
17:20 - 08:00IAD-LHR
9h 40m1 stop
£393Aer Lingus
Find Deal
Sat, 6 Sep - Sat, 13 Sep
British Airways Logo
15:05 - 07:59LGW-DCA
21h 54m1 stop
British Airways Logo
13:39 - 10:55DCA-LGW
16h 16m2 stops
£463British Airways
Find Deal
Fri, 19 Sep - Fri, 26 Sep
British Airways Logo
15:05 - 23:07LGW-DCA
13h 02m1 stop
British Airways Logo
15:35 - 08:10DCA-LGW
11h 35m1 stop
£463British Airways
Find Deal
Thu, 11 Sep - Sat, 20 Sep
Virgin Atlantic Logo
09:40 - 16:54LHR-DCA
12h 14m1 stop
Virgin Atlantic Logo
14:00 - 06:45DCA-LHR
11h 45m1 stop
£478Virgin Atlantic
Find Deal
Sat, 6 Sep - Sat, 13 Sep
Virgin Atlantic Logo
09:20 - 15:35LCY-IAD
11h 15m1 stop
Virgin Atlantic Logo
17:25 - 09:30IAD-LCY
11h 05m1 stop
£479Virgin Atlantic
Find Deal
Fri, 19 Sep - Fri, 26 Sep

PLAY flights from United Kingdom to Washington, D.C.

Our best PLAY deals on United Kingdom to Washington, D.C. flight tickets
PLAY
24 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
30 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
£312
Find similar
PLAY
26 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
30 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
£322
Find similar
PLAY
3 Sept
STN11:40London Stansted
11h 00m
1 stop
BWI17:40Baltimore/Washington
7 Sept
BWI18:50Baltimore/Washington
10h 50m
1 stop
STN10:40London Stansted
£328
Find similar

Icelandair flights from United Kingdom to Washington, D.C.

Our best Icelandair deals on United Kingdom to Washington, D.C. flight tickets
Icelandair
19 Sept
LHR13:05London Heathrow
14h 05m
1 stop
IAD22:10Washington, D.C. Dulles Intl
26 Sept
IAD23:15Washington, D.C. Dulles Intl
31h 40m
1 stop
LHR11:55London Heathrow
£356
Find similar
Icelandair
6 Sept
LGW15:40London Gatwick
11h 30m
1 stop
IAD22:10Washington, D.C. Dulles Intl
13 Sept
IAD23:15Washington, D.C. Dulles Intl
10h 25m
1 stop
LGW14:40London Gatwick
£386
Find similar
Icelandair
2 Oct
LGW15:40London Gatwick
32h 40m
1 stop
IAD19:20Washington, D.C. Dulles Intl
7 Oct
IAD20:30Washington, D.C. Dulles Intl
13h 10m
1 stop
LGW14:40London Gatwick
£388
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to Washington, D.C. 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 6 August 2025.
Use the filters below to find and compare flights from the United Kingdom to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Wed 24/9

11:40-17:40

1 stop11h 00m

Baltimore/Washington

Tue 30/9

18:50-10:40

1 stop10h 50m

£312

LondonBaltimore

STN - BWI

STNBWI

London Stansted

Fri 26/9

11:40-17:40

1 stop11h 00m

Baltimore/Washington

Tue 30/9

18:50-10:40

1 stop10h 50m

£322

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 19/9

13:05-22:10

1 stop14h 05m

Washington, D.C. Dulles Intl

Fri 26/9

23:15-11:55

1 stop31h 40m

£356

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 6/9

15:40-22:10

1 stop11h 30m

Washington, D.C. Dulles Intl

Sat 13/9

23:15-14:40

1 stop10h 25m

£386

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 3/9

09:50-15:50

1 stop11h 00m

Washington, D.C. Dulles Intl

Wed 24/9

17:20-08:00

1 stop9h 40m

£389

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 6/9

07:40-15:50

1 stop13h 10m

Washington, D.C. Dulles Intl

Sat 13/9

17:20-08:00

1 stop9h 40m

£393

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Fri 19/9

15:05-07:59

1 stop21h 54m

Washington, D.C. Reagan-National

Fri 26/9

13:39-10:55

2 stops16h 16m

£463

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Thu 11/9

15:05-23:07

1 stop13h 02m

Washington, D.C. Reagan-National

Sat 20/9

15:35-08:10

1 stop11h 35m

£463

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 6/9

09:40-16:54

1 stop12h 14m

Washington, D.C. Reagan-National

Sat 13/9

14:00-06:45

1 stop11h 45m

£478

LondonWashington, D.C.

LCY - IAD

LCYIAD

London City

Fri 19/9

09:20-15:35

1 stop11h 15m

Washington, D.C. Dulles Intl

Fri 26/9

17:25-09:30

1 stop11h 05m

£479

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 Washington, D.C. from

How to get the cheapest flight ticket from United Kingdom to Washington, D.C.

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 Washington, D.C.?

The cheapest month to fly to Washington, D.C. from United Kingdom is in February. Flight prices, which tend to average around £469, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in February, then you should wait until November to fly from United Kingdom, when ticket prices are also cheap, with an average price of £495.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from United Kingdom is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £614. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from United Kingdom because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £694.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the evening is the cheapest time of day to fly from United Kingdom to Washington, D.C. when you can find flight prices for as low as £516. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £643. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest United Kingdom to Washington, D.C. flight route?

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best United Kingdom - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around £648 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from United Kingdom for as low as £564 on momondo.

What cabin class options are available on United Kingdom to Washington, D.C. flights?

There are 4 cabin classes available to choose from on United Kingdom to Washington, D.C. 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 United Kingdom to Washington, D.C. flights?

You could potentially save up to 34% on your flight if you consider stops on a United Kingdom to Washington, D.C. flight.

Cheap United Kingdom to Washington, D.C. flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to Washington, D.C.

Best price found

£202

Fastest flight time

10h 35m

Direct flights

Every day

Airports in Washington, D.C.

3 airports
The best one-way flight to Washington, D.C. from United Kingdom in the past 72 hours is £202. The best return flight deal from United Kingdom to Washington, D.C. found on momondo in the last 72 hours is £312.
The fastest flight from United Kingdom to Washington, D.C. takes 10h 35m
Direct flights go from United Kingdom to Washington, D.C. every day.
There are 3 airports near Washington, D.C.: Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)
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  • When did momondo last update prices for flights from United Kingdom to Washington, D.C.?

    Prices for flights from United Kingdom to Washington, D.C. are refreshed on a daily basis.

  • How many operators does momondo search for flights from United Kingdom to Washington, D.C.?

  • How old do you have to be to fly from United Kingdom to Washington, D.C.?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to Washington, D.C..

  • What documentation or ID do you need to fly to Washington, D.C.?

    The necessary travel and health documents for your Washington, D.C. 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 United Kingdom to Washington, D.C.?

Best airlines flying from United Kingdom to Washington, D.C.

Compare and see reviews for airlines that fly from United Kingdom to Washington, D.C. with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom £190Free CancellationRating
8.0
7,985 reviews
Search Delta flights
PLAYPriceFrom £251Free CancellationRating
7.0
102 reviews
Search PLAY flights
IcelandairPriceFrom £351Free CancellationRating
7.0
524 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom £357Free CancellationRating
7.1
1,942 reviews
Search TAP AIR PORTUGAL flights
FinnairPriceFrom £369Free CancellationRating
7.6
1,319 reviews
Search Finnair flights
LufthansaPriceFrom £369Free CancellationRating
6.8
7,287 reviews
Search Lufthansa flights
JetBluePriceFrom £379Free CancellationRating
7.2
2,914 reviews
Search JetBlue flights
Scandinavian AirlinesPriceFrom £425Free CancellationRating
7.4
1,462 reviews
Search Scandinavian Airlines flights
Aer LingusPriceFrom £433Free CancellationRating
7.1
1,197 reviews
Search Aer Lingus flights
Air FrancePriceFrom £443Free CancellationRating
7.5
1,466 reviews
Search Air France flights

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Laurel
Essex
Alexandria
Fairfax
Manassas
Bethesda
Oxon Hill
College Park
Linthicum Heights
Gettysburg
Hanover
Cambridge
Ellicott City
Westminster
Arlington
Woodbridge
Owings Mills
Silver Spring
National Harbor

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from United Kingdom to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from United Kingdom to Washington, D.C. with flexible booking policies on momondo?

All flight searches from United Kingdom to Washington, D.C. on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from United Kingdom to Washington, D.C.?

Once you have performed a search for United Kingdom to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from United Kingdom to Washington, D.C. right now. Can momondo alert me if prices change?

Yes. momondo can track prices for United Kingdom to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Washington, D.C. trip

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport