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Washington, D.C.

$400+ Cheap flights from the United Kingdom to Washington, D.C. (WAS)

LHR — WAS
Dec 8 — Dec 151
Tue 12/8
Tue 12/15
1 adult, Economy
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Cheap flight deals from United Kingdom to Washington, D.C.

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

Thu 12/248:35 pm -
1 stop26h 55m
Sat 1/97:40 pm -
1 stop10h 10m
Deal found 11/3$541
Fri 12/2512:15 pm -
1 stop11h 15m
Sun 1/317:40 pm -
1 stop10h 10m
Deal found 11/7$543
Tue 12/88:35 pm -
1 stop26h 55m
Wed 12/237:40 pm -
1 stop18h 50m
Deal found 11/6$545
Sun 12/138:35 pm -
1 stop26h 55m
Tue 1/57:40 pm -
1 stop18h 50m
Deal found 11/3$546
Sat 12/268:35 pm -
1 stop26h 55m
Sun 1/107:40 pm -
1 stop18h 50m
Deal found 11/3$547
Thu 12/312:00 pm -
1 stop14h 57m
Tue 12/81:25 pm -
1 stop14h 45m
Deal found 11/5$549
Sun 12/138:35 pm -
1 stop26h 55m
Fri 1/87:40 pm -
1 stop18h 50m
Deal found 11/4$550
Thu 11/196:00 am -
1 stop14h 15m
Sat 11/285:25 pm -
1 stop23h 10m
Deal found 11/4$551
Thu 11/126:00 am -
1 stop14h 15m
Mon 11/165:25 pm -
1 stop23h 10m
Deal found 11/5$552
Thu 12/1012:15 pm -
1 stop11h 15m
Wed 1/67:40 pm -
1 stop10h 10m
Deal found 11/6$553
Wed 11/184:35 pm -
1 stop27h 40m
Sun 11/2910:30 pm -
1 stop12h 15m
Deal found 11/6$558
Mon 11/2311:55 am -
1 stop11h 35m
Fri 12/257:40 pm -
1 stop10h 15m
Deal found 11/7$559

Find flight deals from United Kingdom to Washington, D.C.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$541
(Kiwi.com)

One-way from

$400
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$660

Good round-trip deal

$766 or less

Good one-way deal

$574 or less
Provider with most accurate pricing for London (LON)-Washington, D.C. (WAS) flight deals.
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Provider most trusted by Cheapflights users for London (LON)-Washington, D.C. (WAS) flights.
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From United Kingdom to Washington, D.C. (WAS)
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One-way flight from United Kingdom to Washington, D.C. (WAS)
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Highest demand for flights based on searches. 9% potential increase in price ($71 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in November 2026
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Price to beat on a round-trip flight from United Kingdom to Washington, D.C. (WAS).
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Price to beat on a one-way flight from United Kingdom to Washington, D.C. (WAS).
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Cheapflights Fare Finder

 
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

Cheapest round-trip

EdinburghWashington, D.C.

EDI Edinburgh Turnhouse - IAD Washington, D.C. Dulles Intl

EDIIAD

Edinburgh Turnhouse

Tue 12/15

6:20 am-8:30 pm

3 stops43h 10m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$400

ManchesterWashington, D.C.

MAN Manchester - IAD Washington, D.C. Dulles Intl

MANIAD

Manchester

Fri 1/22

6:40 am-3:15 pm

3 stops37h 35m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$406

EdinburghWashington, D.C.

EDI Edinburgh Turnhouse - IAD Washington, D.C. Dulles Intl

EDIIAD

Edinburgh Turnhouse

Sun 12/13

6:10 am-7:05 pm

2 stops17h 55m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$431

EdinburghWashington, D.C.

EDI Edinburgh Turnhouse - IAD Washington, D.C. Dulles Intl

EDIIAD

Edinburgh Turnhouse

Sun 4/11

5:45 pm-8:35 pm

3 stops31h 50m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$438

Newcastle upon TyneWashington, D.C.

NCL Newcastle upon Tyne - IAD Washington, D.C. Dulles Intl

NCLIAD

Newcastle upon Tyne

Mon 11/23

7:10 am-2:40 pm

2 stops36h 30m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$438

BirminghamWashington, D.C.

BHX Birmingham - IAD Washington, D.C. Dulles Intl

BHXIAD

Birmingham

Sun 11/22

9:00 pm-2:40 pm

3 stops46h 40m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$475

LondonWashington, D.C.

LHR London Heathrow - IAD Washington, D.C. Dulles Intl

LHRIAD

London Heathrow

Thu 11/19

6:00 am-3:15 pm

1 stop14h 15m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$524

ManchesterWashington, D.C.

MAN Manchester - IAD Washington, D.C. Dulles Intl

MANIAD

Manchester

Thu 11/19

5:05 pm-7:05 pm

1 stop31h 00m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$532

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Sat 2/13

10:10 am-8:35 pm

2 stops39h 25m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$540

LondonWashington, D.C.

LGW London Gatwick - IAD Washington, D.C. Dulles Intl

LGWIAD

London Gatwick

Thu 1/21

10:10 am-8:30 pm

2 stops39h 20m

Washington, D.C. Dulles Intl

Wed 12/31

12:00 am-6:00 am

Nonstop0h 00m

$544

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from United Kingdom to Washington, D.C.

Have a flexible travel schedule? Discover the best time to fly to Washington, D.C. from United Kingdom with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to Washington, D.C.

What is the cheapest month to book a flight from United Kingdom to Washington, D.C.?

Currently, February is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of $659). Flying from United Kingdom to Washington, D.C. in May is currently the most expensive (average of $810). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from GB to WAS?

When flying from United Kingdom to Washington, D.C., the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to Washington, D.C.

The most flights from GB0 to WAS are scheduled on a Friday (27 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

How often are flights from the United Kingdom to Washington, D.C. delayed?

About 16% of weekly flights between United Kingdom and Washington, D.C. have experienced delays in the past year, with the average delay time being 140 minutes.

What is the most punctual flight time for the United Kingdom to Washington, D.C. flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on the United Kingdom to Washington, D.C. flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 10% of flights being delayed.

How far ahead should I book a flight from United Kingdom to Washington, D.C.?

Booking 47 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to Washington, D.C.. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing Washington, D.C.

Read through reviews of airlines operating flights from the United Kingdom to Washington, D.C., such as Aer Lingus,United Airlines, andIcelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,883 reviews

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Aer Lingus
7.3
Good
1,883 reviews
Aer Lingus
7.3
Good
1,883 reviews

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
United Airlines
7.3
Good
10,472 reviews
Aer Lingus
7.3
Good
1,883 reviews

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Icelandair
6.9
Okay
767 reviews
Aer Lingus
7.3
Good
1,883 reviews

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
Lufthansa
6.8
Okay
8,297 reviews
Aer Lingus
7.3
Good
1,883 reviews

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.
British Airways
6.7
Okay
8,285 reviews
Aer Lingus
7.3
Good
1,883 reviews

Crew

8.1

Overall

7.3

Food

6.7

Comfort

7.2

Boarding

7.5

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Related info for your journey

  • How long is the flight from United Kingdom to Washington, D.C.?

    There are many flights that can get you from United Kingdom to Washington, D.C. in 10h 55m. Fly via TAP AIR PORTUGAL, British Airways, or Icelandair to get the fastest option. The distance between United Kingdom and Washington, D.C. is about 3664 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from United Kingdom to Washington, D.C. one-way?

    The cheapest airlines for a one-way flight from United Kingdom to Washington, D.C. are Icelandair ($161), Virgin Atlantic ($334), and JetBlue ($411).

  • What are the most popular routes from United Kingdom to Washington, D.C.?

    Most travelers choose London Heathrow - Washington, D.C. Dulles Intl, London Heathrow - Baltimore/Washington or London Gatwick - Washington, D.C. Dulles Intl when deciding on the best route from United Kingdom to Washington, D.C..

  • What are the most reliable airlines from United Kingdom to Washington, D.C.?

    No one likes to see their flight delayed. When booking a flight from United Kingdom to Washington, D.C. consider choosing Air Canada (75%), Austrian Airlines (75%) or Copa Airlines (75%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from United Kingdom to Washington, D.C.?

    On average you can expect to pay $2,298 for a flight from United Kingdom to Washington, D.C.. The cheapest flight overall is $470 while the most popular route, (London Heathrow - Washington, D.C. Dulles Intl) is currently priced at $355.

  • Can I find deals for flights from United Kingdom to Washington, D.C. that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Washington, D.C. flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Washington, D.C.?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Washington, D.C..

  • Can I find deals for business class flights from United Kingdom to Washington, D.C.?

    Yes. Cheapflights offers flight deals from United Kingdom to Washington, D.C. by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from United Kingdom to Washington, D.C.?

    Currently, February is the cheapest month in which you can book a flight from United Kingdom to Washington, D.C. (average of $659). Flying from United Kingdom to Washington, D.C. in May is currently the most expensive (average of $810). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Woodbridge
Arlington
Lanham
Reston
Herndon
Hyattsville
Springfield
Fredericksburg
Falls Church
Towson
Silver Spring
Rockville
Oxon Hill
Laurel
Clinton
Hunt Valley
Owings Mills
Waldorf
Colonial Beach

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from United Kingdom to Washington, D.C.

AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$528Average$850FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$544Average$744FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$556Average$740FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$566Average$1,080FlexibilityNo cancel feeOn-time70%
Austrian AirlinesCheapest$567Average$750FlexibilityNo cancel feeOn-time78%
Virgin AtlanticCheapest$581Average$711FlexibilityNo cancel feeOn-time72%
DeltaCheapest$581Average$872FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$582Average$748FlexibilityNo cancel feeOn-time77%
KLMCheapest$583Average$836FlexibilityNo cancel feeOn-time75%
Aer LingusCheapest$658Average$922FlexibilityNo cancel feeOn-timeN/A

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