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Cheap flights from London to Washington, D.C. from €467

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Washington, D.C. departing on 3/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

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Scandinavian Airlines Logo
19:50 - 18:50
LHR
-
IAD
28h 00m2 stops
Scandinavian Airlines Logo
20:30 - 16:25
IAD
-
LHR
14h 55m2 stops
€536Scandinavian Airlines
Fri, 30 Jan - Mon, 16 Feb
Scandinavian Airlines Logo
06:40 - 18:15
LHR
-
IAD
15h 35m1 stop
Scandinavian Airlines Logo
20:20 - 18:50
IAD
-
LHR
17h 30m2 stops
€538Scandinavian Airlines
Thu, 19 Mar - Mon, 30 Mar
Scandinavian Airlines Logo
10:20 - 18:15
LHR
-
IAD
11h 55m1 stop
Scandinavian Airlines Logo
21:30 - 19:55
IAD
-
LHR
18h 25m2 stops
€540Scandinavian Airlines
Wed, 18 Mar - Wed, 25 Mar
Scandinavian Airlines Logo
06:40 - 18:15
LHR
-
IAD
15h 35m1 stop
Scandinavian Airlines Logo
21:30 - 19:55
IAD
-
LHR
18h 25m2 stops
€541Scandinavian Airlines
Wed, 18 Mar - Wed, 25 Mar
Virgin Atlantic Logo
11:45 - 22:53
LHR
-
BWI
16h 08m2 stops
Virgin Atlantic Logo
14:38 - 06:25
BWI
-
LHR
11h 47m1 stop
€562Virgin Atlantic
Sun, 1 Mar - Sun, 8 Mar
Virgin Atlantic Logo
06:30 - 17:53
LHR
-
BWI
15h 23m2 stops
Virgin Atlantic Logo
11:45 - 08:05
BWI
-
LHR
16h 20m2 stops
€575Virgin Atlantic
Mon, 9 Mar - Wed, 18 Mar
Delta Logo
08:40 - 23:01
LHR
-
BWI
18h 21m2 stops
Delta Logo
10:53 - 06:45
BWI
-
LHR
14h 52m1 stop
€576Delta
Sat, 28 Mar - Tue, 7 Apr
Delta Logo
11:30 - 23:01
LHR
-
BWI
15h 31m2 stops
Delta Logo
14:38 - 06:30
BWI
-
LHR
10h 52m1 stop
€581Delta
Fri, 27 Mar - Tue, 7 Apr
Icelandair Logo
20:35 - 19:40
LHR
-
BWI
27h 05m1 stop
Icelandair Logo
20:30 - 11:55
BWI
-
LHR
10h 25m1 stop
€584Icelandair
Sun, 22 Mar - Sun, 29 Mar
KLM Logo
13:00 - 23:01
LHR
-
BWI
14h 01m1 stop
KLM Logo
14:38 - 07:50
BWI
-
LHR
13h 12m1 stop
€585KLM
Fri, 13 Mar - Sun, 15 Mar

Scandinavian Airlines flights from London to Washington, D.C.

Our best Scandinavian Airlines deals on London to Washington, D.C. flight tickets
Scandinavian Airlines
30 Jan
LHR19:50London Heathrow
28h 00m
2 stops
IAD18:50Washington, D.C. Dulles Intl
16 Feb
IAD20:30Washington, D.C. Dulles Intl
14h 55m
2 stops
LHR16:25London Heathrow
€536
Find similar
Scandinavian Airlines
19 Mar
LHR06:40London Heathrow
15h 35m
1 stop
IAD18:15Washington, D.C. Dulles Intl
30 Mar
IAD20:20Washington, D.C. Dulles Intl
17h 30m
2 stops
LHR18:50London Heathrow
€538
Find similar
Scandinavian Airlines
18 Mar
LHR10:20London Heathrow
11h 55m
1 stop
IAD18:15Washington, D.C. Dulles Intl
25 Mar
IAD21:30Washington, D.C. Dulles Intl
18h 25m
2 stops
LHR19:55London Heathrow
€540
Find similar

British Airways flights from London to Washington, D.C.

Our best British Airways deals on London to Washington, D.C. flight tickets
British Airways
16 Mar
LHR12:10London Heathrow
8h 25m
IAD16:35Washington, D.C. Dulles Intl
22 Mar
IAD19:20Washington, D.C. Dulles Intl
7h 10m
LHR06:30London Heathrow
€585
Find similar
British Airways
11 Apr
LHR12:35London Heathrow
8h 15m
IAD15:50Washington, D.C. Dulles Intl
17 Apr
IAD22:25Washington, D.C. Dulles Intl
7h 25m
LHR10:50London Heathrow
€598
Find similar
British Airways
10 May
LHR06:10London Heathrow
14h 20m
1 stop
IAD15:30Washington, D.C. Dulles Intl
21 May
IAD22:25Washington, D.C. Dulles Intl
7h 25m
LHR10:50London Heathrow
€607
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London 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 13,528 searches. Data last updated 6 December 2025.
Use the filters below to find and compare flights from London to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 30/1

19:50-18:50

2 stops28h 00m

Washington, D.C. Dulles Intl

Mon 16/2

20:30-16:25

2 stops14h 55m

€536

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 19/3

06:40-18:15

1 stop15h 35m

Washington, D.C. Dulles Intl

Mon 30/3

20:20-18:50

2 stops17h 30m

€538

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 18/3

10:20-18:15

1 stop11h 55m

Washington, D.C. Dulles Intl

Wed 25/3

21:30-19:55

2 stops18h 25m

€540

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 18/3

06:40-18:15

1 stop15h 35m

Washington, D.C. Dulles Intl

Wed 25/3

21:30-19:55

2 stops18h 25m

€541

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Sun 1/3

11:45-22:53

2 stops16h 08m

Baltimore/Washington

Sun 8/3

14:38-06:25

1 stop11h 47m

€562

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Mon 9/3

06:30-17:53

2 stops15h 23m

Baltimore/Washington

Wed 18/3

11:45-08:05

2 stops16h 20m

€575

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Sat 28/3

08:40-23:01

2 stops18h 21m

Baltimore/Washington

Tue 7/4

10:53-06:45

1 stop14h 52m

€576

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Fri 27/3

11:30-23:01

2 stops15h 31m

Baltimore/Washington

Tue 7/4

14:38-06:30

1 stop10h 52m

€581

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Sun 22/3

20:35-19:40

1 stop27h 05m

Baltimore/Washington

Sun 29/3

20:30-11:55

1 stop10h 25m

€584

LondonBaltimore

LHR - BWI

LHRBWI

London Heathrow

Fri 13/3

13:00-23:01

1 stop14h 01m

Baltimore/Washington

Sun 15/3

14:38-07:50

1 stop13h 12m

€585

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 London 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 typical price of a round-trip flight between London and Washington, D.C.?

What is the cheapest month to fly to Washington, D.C.?

The cheapest month to fly to Washington, D.C. from London is in February. Flight prices, which tend to average around €536, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Washington, D.C. from London during September instead. Flights to Washington, D.C. in September, while not as cheap as those in February, still average around €552.

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

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best London - 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 London when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around €655 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 London for as low as €585 on momondo.

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

There is only 1 cabin class available to choose from on London 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 London to Washington, D.C. flights?

No. A direct flight is the cheapest option for a flight between London to Washington, D.C..

How have London to Washington, D.C. flight prices changed over time?

As of December 2025, prices for London to Washington, D.C. flights are approximately 37% more expensive when compared to flights at the same time last year.

When to book flights from London to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from London to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London to Washington, D.C. (LON to WAS) flight deals and tips

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

Fastest flight time

8h 10m

Direct flights

Every day

Airports in Washington, D.C.

2 airports
The fastest flight from London to Washington, D.C. takes 8h 10m
Direct flights go from London to Washington, D.C. every day.
There are 2 airports near Washington, D.C.: Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • How far is London to Washington, D.C. by plane?

    A flight from London to Washington, D.C. will travel around 5893.9 km. By plane, this route typically takes 8h 15m.

  • When did momondo last update prices for flights from London to Washington, D.C.?

    Prices for flights from London to Washington, D.C. refresh daily.

  • How old do you have to be to fly from London 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 London to Washington, D.C..

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

    The required travel and health documents for your Washington, D.C. trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Washington, D.C.. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from London to Washington, D.C.?

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Gettysburg

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from London.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from London with this policy.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from London.

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

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

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

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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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 36.1 km from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport