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Cheap flights from London Heathrow Airport to District of Columbia from £372

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 Heathrow Airport to District of Columbia departing on 12/12. 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 London Heathrow Airport to District of Columbia

Cheap return flights

United Airlines Logo
09:00 - 16:40LHR-IAD
12h 40m1 stop
United Airlines Logo
19:20 - 06:40IAD-LHR
7h 20mdirect
£393United Airlines
Find Deal
Tue, 3 Mar - Thu, 12 Mar
SWISS Logo
20:05 - 15:35LHR-IAD
23h 30m1 stop
SWISS Logo
20:30 - 16:20IAD-LHR
14h 50m1 stop
£394SWISS
Find Deal
Mon, 27 Oct - Fri, 7 Nov
Virgin Atlantic Logo
20:25 - 22:59LHR-DCA
30h 34m2 stops
Virgin Atlantic Logo
19:35 - 07:50DCA-LHR
31h 15m2 stops
£394Virgin Atlantic
Find Deal
Mon, 27 Oct - Fri, 7 Nov
Austrian Airlines Logo
19:25 - 14:40LHR-IAD
24h 15m1 stop
Austrian Airlines Logo
22:15 - 10:50IAD-LHR
7h 35mdirect
£394Austrian Airlines
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Tue, 6 Jan - Tue, 13 Jan
Lufthansa Logo
11:30 - 20:15LHR-IAD
13h 45m1 stop
Lufthansa Logo
22:15 - 10:50IAD-LHR
7h 35mdirect
£397Lufthansa
Find Deal
Sat, 10 Jan - Sat, 24 Jan
Virgin Atlantic Logo
12:35 - 16:00LHR-IAD
8h 25mdirect
Virgin Atlantic Logo
19:59 - 11:25IAD-LHR
10h 26m1 stop
£400Virgin Atlantic
Find Deal
Wed, 1 Oct - Wed, 8 Oct
British Airways Logo
16:25 - 19:55LHR-IAD
8h 30mdirect
British Airways Logo
22:45 - 10:00IAD-LHR
7h 15mdirect
£401British Airways
Find Deal
Thu, 5 Mar - Thu, 12 Mar
Icelandair Logo
13:05 - 19:20LHR-IAD
11h 15m1 stop
Icelandair Logo
20:30 - 11:55IAD-LHR
10h 25m1 stop
£403Icelandair
Find Deal
Sat, 4 Oct - Sun, 5 Oct
British Airways Logo
17:00 - 23:07LHR-DCA
11h 07m1 stop
British Airways Logo
06:38 - 21:40DCA-LHR
10h 02m1 stop
£405British Airways
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Mon, 29 Sep - Wed, 15 Oct
Lufthansa Logo
12:15 - 15:30LHR-IAD
8h 15mdirect
Lufthansa Logo
22:25 - 10:40IAD-LHR
7h 15mdirect
£419Lufthansa
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Fri, 26 Sep - Tue, 30 Sep

United Airlines flights from London Heathrow Airport to District of Columbia

Our best United Airlines deals on London Heathrow Airport to District of Columbia flight tickets
United Airlines
3 Mar
LHR09:00London Heathrow
12h 40m
1 stop
IAD16:40Washington, D.C. Dulles Intl
12 Mar
IAD19:20Washington, D.C. Dulles Intl
7h 20m
LHR06:40London Heathrow
£393
Find similar
United Airlines
22 Sept
LHR06:50London Heathrow
11h 40m
1 stop
IAD13:30Washington, D.C. Dulles Intl
28 Sept
IAD18:40Washington, D.C. Dulles Intl
7h 15m
LHR06:55London Heathrow
£394
Find similar
United Airlines
2 Mar
LHR07:40London Heathrow
12h 55m
1 stop
IAD15:35Washington, D.C. Dulles Intl
12 Mar
IAD19:20Washington, D.C. Dulles Intl
7h 20m
LHR06:40London Heathrow
£395
Find similar

SWISS flights from London Heathrow Airport to District of Columbia

Our best SWISS deals on London Heathrow Airport to District of Columbia flight tickets
SWISS
27 Oct
LHR20:05London Heathrow
23h 30m
1 stop
IAD15:35Washington, D.C. Dulles Intl
7 Nov
IAD20:30Washington, D.C. Dulles Intl
14h 50m
1 stop
LHR16:20London Heathrow
£394
Find similar
SWISS
21 Nov
LHR06:00London Heathrow
15h 40m
1 stop
IAD16:40Washington, D.C. Dulles Intl
11 Dec
IAD18:20Washington, D.C. Dulles Intl
7h 20m
LHR06:40London Heathrow
£405
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from London Heathrow Airport to District of Columbia 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 16 September 2025.
Use the filters below to find and compare flights from London Heathrow Airport to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 3/3

09:00-16:40

1 stop12h 40m

Washington, D.C. Dulles Intl

Thu 12/3

19:20-06:40

Nonstop7h 20m

£393

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 27/10

20:05-15:35

1 stop23h 30m

Washington, D.C. Dulles Intl

Fri 7/11

20:30-16:20

1 stop14h 50m

£394

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 27/10

20:25-22:59

2 stops30h 34m

Washington, D.C. Reagan-National

Fri 7/11

19:35-07:50

2 stops31h 15m

£394

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 6/1

19:25-14:40

1 stop24h 15m

Washington, D.C. Dulles Intl

Tue 13/1

22:15-10:50

Nonstop7h 35m

£394

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 10/1

11:30-20:15

1 stop13h 45m

Washington, D.C. Dulles Intl

Sat 24/1

22:15-10:50

Nonstop7h 35m

£397

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 1/10

12:35-16:00

Nonstop8h 25m

Washington, D.C. Dulles Intl

Wed 8/10

19:59-11:25

1 stop10h 26m

£400

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 5/3

16:25-19:55

Nonstop8h 30m

Washington, D.C. Dulles Intl

Thu 12/3

22:45-10:00

Nonstop7h 15m

£401

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 4/10

13:05-19:20

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 5/10

20:30-11:55

1 stop10h 25m

£403

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 29/9

17:00-23:07

1 stop11h 07m

Washington, D.C. Reagan-National

Wed 15/10

06:38-21:40

1 stop10h 02m

£405

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 26/9

12:15-15:30

Nonstop8h 15m

Washington, D.C. Dulles Intl

Tue 30/9

22:25-10:40

Nonstop7h 15m

£419

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 District of Columbia from

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

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 District of Columbia?

The cheapest month to fly to District of Columbia from London Heathrow Airport is in September. Flight prices, which tend to average around £486, are often lower during this time because this is during the off-season. If you are unable to visit District of Columbia during the month of September, then departing from London Heathrow Airport during the month February is also very affordable. Most momondo users find prices during this month for around £513.

What is the cheapest day to depart on your flight to District of Columbia?

Our data shows that Wednesday is the least expensive day to fly to District of Columbia. Tickets to fly out on this day can be as low as £592. Flights from London Heathrow Airport to District of Columbia on a Sunday will generally be more expensive and average around £666. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

In the evening is the cheapest time of day to fly from London Heathrow Airport to District of Columbia when you can find flight prices for as low as £510. Flying to District of Columbia in the evening is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to District of Columbia is in the afternoon when prices are around £624.

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

Fly from London Heathrow to Washington, D.C. Dulles Intl for the best London Heathrow - District of Columbia flight prices

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia 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 District of Columbia from London Heathrow Airport for as low as £538 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow to District of Columbia 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 Heathrow Airport to District of Columbia flights?

You could potentially save up to 18% on your flight if you consider stops on a London Heathrow Airport to District of Columbia flight.

Cheap London Heathrow Airport to District of Columbia flight deals and tips

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

Best price found

£470

Fastest flight time

8h 05m

Direct flights

Every day

Airports in District of Columbia

1 airport
The best one-way flight to District of Columbia from London Heathrow Airport in the past 72 hours is £470. The best return flight deal from London Heathrow Airport to District of Columbia found on momondo in the last 72 hours is £469.
The fastest flight from London Heathrow Airport to District of Columbia takes 8h 05m
Direct flights go from London Heathrow Airport to District of Columbia every day.
There is 1 airport near District of Columbia: Washington, D.C. Dulles Intl (IAD)
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  • When did momondo last update prices for flights from London Heathrow Airport to District of Columbia?

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

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

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

    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 London Heathrow Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The travel and health documents you'll need for your trip to District of Columbia may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at District of Columbia. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from London Heathrow Airport to District of Columbia

Compare and see reviews for airlines that fly from London Heathrow Airport to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom £186Free CancellationRating
7.9
7,954 reviews
Search Delta flights
PLAYPriceFrom £242Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom £349Free CancellationRating
7.1
1,975 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom £358Free CancellationRating
7.0
544 reviews
Search Icelandair flights
JetBluePriceFrom £370Free CancellationRating
7.2
2,912 reviews
Search JetBlue flights
Aer LingusPriceFrom £393Free CancellationRating
7.2
1,270 reviews
Search Aer Lingus flights
United AirlinesPriceFrom £394Free CancellationRating
7.4
8,929 reviews
Search United Airlines flights
FinnairPriceFrom £429Free CancellationRating
7.6
1,323 reviews
Search Finnair flights
LufthansaPriceFrom £432Free CancellationRating
6.8
7,407 reviews
Search Lufthansa flights
Scandinavian AirlinesPriceFrom £432Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to District of Columbia. momondo saves you time and could save you money on your trip.

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

All flight searches from London to District of Columbia on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for London to District of Columbia 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 London to District of Columbia right now. Can momondo alert me if prices change?

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

An easier way to manage your District of Columbia trip

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