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Cheap flights from London Heathrow Airport to District of Columbia from £270

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 2/9. 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

Icelandair Logo
21:25 - 19:20LHR-IAD
26h 55m1 stop
Icelandair Logo
20:30 - 11:55IAD-LHR
10h 25m1 stop
£364Icelandair
Find Deal
Mon, 15 Sep - Mon, 22 Sep
TAP AIR PORTUGAL Logo
06:00 - 15:20LHR-IAD
14h 20m1 stop
TAP AIR PORTUGAL Logo
18:30 - 12:40IAD-LHR
14h 10m1 stop
£367TAP AIR PORTUGAL
Find Deal
Thu, 23 Oct - Mon, 27 Oct
SWISS Logo
06:00 - 16:15LHR-IAD
15h 15m1 stop
SWISS Logo
20:45 - 13:00IAD-LHR
11h 15m1 stop
£372SWISS
Find Deal
Sun, 5 Oct - Wed, 22 Oct
Aer Lingus Logo
13:25 - 19:30LHR-IAD
11h 05m1 stop
Aer Lingus Logo
17:05 - 08:05IAD-LHR
10h 00m1 stop
£383Aer Lingus
Find Deal
Wed, 8 Oct - Sun, 30 Nov
Aer Lingus Logo
08:50 - 15:50LHR-IAD
12h 00m1 stop
Aer Lingus Logo
20:25 - 12:40IAD-LHR
11h 15m1 stop
£389Aer Lingus
Find Deal
Sun, 31 Aug - Sat, 13 Sep
JetBlue Logo
08:15 - 19:20LHR-DCA
16h 05m1 stop
JetBlue Logo
06:19 - 20:45DCA-LHR
9h 26m1 stop
£415JetBlue
Find Deal
Wed, 10 Sep - Mon, 15 Sep
JetBlue Logo
08:15 - 22:56LHR-DCA
19h 41m1 stop
JetBlue Logo
17:42 - 20:45DCA-LHR
22h 03m1 stop
£417JetBlue
Find Deal
Wed, 17 Sep - Mon, 22 Sep
Air Canada Logo
06:50 - 15:51LHR-DCA
14h 01m2 stops
Air Canada Logo
16:35 - 09:35DCA-LHR
12h 00m1 stop
£420Air Canada
Find Deal
Wed, 3 Sep - Tue, 9 Sep
Air Canada Logo
06:50 - 15:51LHR-DCA
14h 01m2 stops
Air Canada Logo
11:00 - 06:30DCA-LHR
14h 30m2 stops
£424Air Canada
Find Deal
Wed, 3 Sep - Tue, 9 Sep
Scandinavian Airlines Logo
17:00 - 19:59LHR-IAD
31h 59m1 stop
Scandinavian Airlines Logo
22:05 - 21:35IAD-LHR
18h 30m2 stops
£427Scandinavian Airlines
Find Deal
Wed, 8 Oct - Mon, 13 Oct

TAP AIR PORTUGAL flights from London Heathrow Airport to District of Columbia

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to District of Columbia flight tickets
TAP AIR PORTUGAL
23 Oct
LHR06:00London Heathrow
14h 20m
1 stop
IAD15:20Washington, D.C. Dulles Intl
27 Oct
IAD18:30Washington, D.C. Dulles Intl
14h 10m
1 stop
LHR12:40London Heathrow
£367
Find similar
TAP AIR PORTUGAL
15 Oct
LHR06:00London Heathrow
14h 20m
1 stop
IAD15:20Washington, D.C. Dulles Intl
19 Oct
IAD17:45Washington, D.C. Dulles Intl
11h 35m
1 stop
LHR10:20London Heathrow
£383
Find similar
TAP AIR PORTUGAL
10 Sept
LHR06:00London Heathrow
19h 50m
1 stop
IAD20:50Washington, D.C. Dulles Intl
30 Sept
IAD22:20Washington, D.C. Dulles Intl
14h 25m
1 stop
LHR17:45London Heathrow
£389
Find similar

Icelandair flights from London Heathrow Airport to District of Columbia

Our best Icelandair deals on London Heathrow Airport to District of Columbia flight tickets
Icelandair
15 Sept
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl
22 Sept
IAD20:30Washington, D.C. Dulles Intl
10h 25m
1 stop
LHR11:55London Heathrow
£364
Find similar
Icelandair
4 Sept
LHR13:05London Heathrow
14h 05m
1 stop
IAD22:10Washington, D.C. Dulles Intl
8 Sept
IAD20:30Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR20:20London Heathrow
£395
Find similar
Icelandair
21 Sept
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl
2 Oct
IAD20:30Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR20:20London Heathrow
£395
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 2 August 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

Mon 15/9

21:25-19:20

1 stop26h 55m

Washington, D.C. Dulles Intl

Mon 22/9

20:30-11:55

1 stop10h 25m

£364

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 23/10

06:00-15:20

1 stop14h 20m

Washington, D.C. Dulles Intl

Mon 27/10

18:30-12:40

1 stop14h 10m

£367

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 5/10

06:00-16:15

1 stop15h 15m

Washington, D.C. Dulles Intl

Wed 22/10

20:45-13:00

1 stop11h 15m

£372

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 8/10

13:25-19:30

1 stop11h 05m

Washington, D.C. Dulles Intl

Sun 30/11

17:05-08:05

1 stop10h 00m

£383

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sun 31/8

08:50-15:50

1 stop12h 00m

Washington, D.C. Dulles Intl

Sat 13/9

20:25-12:40

1 stop11h 15m

£389

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 10/9

08:15-19:20

1 stop16h 05m

Washington, D.C. Reagan-National

Mon 15/9

06:19-20:45

1 stop9h 26m

£415

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 17/9

08:15-22:56

1 stop19h 41m

Washington, D.C. Reagan-National

Mon 22/9

17:42-20:45

1 stop22h 03m

£417

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 3/9

06:50-15:51

2 stops14h 01m

Washington, D.C. Reagan-National

Tue 9/9

16:35-09:35

1 stop12h 00m

£420

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 3/9

06:50-15:51

2 stops14h 01m

Washington, D.C. Reagan-National

Tue 9/9

11:00-06:30

2 stops14h 30m

£424

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Wed 8/10

17:00-19:59

1 stop31h 59m

Washington, D.C. Dulles Intl

Mon 13/10

22:05-21:35

2 stops18h 30m

£427

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 February. Flight prices, which tend to average around £528, 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 February, then departing from London Heathrow Airport during the month March is also very affordable. Most momondo users find prices during this month for around £538.

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 £620. Flights from London Heathrow Airport to District of Columbia on a Sunday will generally be more expensive and average around £696. 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 £524. 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 £649.

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 £651 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 £567 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.

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

£270

Fastest flight time

11h 05m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from London Heathrow Airport in the past 72 hours is £270. The best return flight deal from London Heathrow Airport to District of Columbia found on momondo in the last 72 hours is £364.
The fastest flight from London Heathrow Airport to District of Columbia takes 11h 05m
Direct flights go from London Heathrow Airport to District of Columbia every day.
There are 2 airports near District of Columbia: Washington, D.C. Reagan-National (DCA), Washington, D.C. Dulles Intl (IAD)
Search flight deals

  • 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 £191Free CancellationRating
8.0
7,983 reviews
Search Delta flights
PLAYPriceFrom £267Free CancellationRating
7.0
102 reviews
Search PLAY flights
Air FrancePriceFrom £298Free CancellationRating
7.5
1,465 reviews
Search Air France flights
TAP AIR PORTUGALPriceFrom £359Free CancellationRating
7.1
1,936 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom £370Free CancellationRating
7.0
520 reviews
Search Icelandair flights
JetBluePriceFrom £381Free CancellationRating
7.2
2,915 reviews
Search JetBlue flights
FinnairPriceFrom £445Free CancellationRating
7.6
1,317 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom £445Free CancellationRating
7.3
1,457 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom £449Free CancellationRating
6.8
7,276 reviews
Search Lufthansa flights
United AirlinesPriceFrom £454Free CancellationRating
7.4
8,904 reviews
Search United 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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