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Cheap flights from London Heathrow Airport to District of Columbia from £429

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 15/1. 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

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
15:35 - 17:15
LHR
-
IAD
30h 40m2 stops
Scandinavian Airlines Logo
20:30 - 16:00
IAD
-
LHR
14h 30m1 stop
£464Scandinavian Airlines
Tue, 20 Jan - Thu, 5 Feb
Scandinavian Airlines Logo
17:30 - 18:50
LHR
-
IAD
30h 20m2 stops
Scandinavian Airlines Logo
21:30 - 16:00
IAD
-
LHR
14h 30m1 stop
£465Scandinavian Airlines
Fri, 27 Feb - Mon, 9 Mar
Finnair Logo
10:20 - 22:03
LHR
-
DCA
16h 43m2 stops
Finnair Logo
17:45 - 17:00
DCA
-
LHR
18h 15m2 stops
£465Finnair
Tue, 20 Jan - Tue, 3 Feb
British Airways Logo
07:30 - 23:12
LHR
-
IAD
20h 42m2 stops
British Airways Logo
18:20 - 06:30
IAD
-
LHR
7h 10mdirect
£466British Airways
Tue, 20 Jan - Tue, 3 Feb
British Airways Logo
12:10 - 15:35
LHR
-
IAD
8h 25mdirect
British Airways Logo
21:45 - 10:00
IAD
-
LHR
7h 15mdirect
£467British Airways
Fri, 30 Jan - Sun, 1 Feb
Finnair Logo
10:20 - 22:33
LHR
-
DCA
17h 13m2 stops
Finnair Logo
17:49 - 21:40
DCA
-
LHR
22h 51m1 stop
£467Finnair
Tue, 21 Apr - Tue, 28 Apr
British Airways Logo
16:25 - 19:55
LHR
-
IAD
8h 30mdirect
British Airways Logo
18:20 - 06:30
IAD
-
LHR
7h 10mdirect
£467British Airways
Fri, 16 Jan - Thu, 29 Jan
Icelandair Logo
12:15 - 18:30
LHR
-
IAD
11h 15m1 stop
Icelandair Logo
20:40 - 10:50
IAD
-
LHR
10h 10m1 stop
£468Icelandair
Sat, 28 Feb - Sun, 8 Mar
JetBlue Logo
09:20 - 17:49
LHR
-
DCA
13h 29m1 stop
JetBlue Logo
14:05 - 06:55
DCA
-
LHR
11h 50m1 stop
£468JetBlue
Tue, 24 Feb - Sun, 1 Mar
JetBlue Logo
09:20 - 16:04
LHR
-
DCA
11h 44m1 stop
JetBlue Logo
16:59 - 06:55
DCA
-
LHR
9h 56m1 stop
£474JetBlue
Sun, 1 Mar - Wed, 11 Mar

Scandinavian Airlines flights from London Heathrow Airport to District of Columbia

Our best Scandinavian Airlines deals on London Heathrow Airport to District of Columbia flight tickets
Scandinavian Airlines
20 Jan
LHR15:35London Heathrow
30h 40m
2 stops
IAD17:15Washington, D.C. Dulles Intl
2 Feb
IAD20:30Washington, D.C. Dulles Intl
14h 30m
1 stop
LHR16:00London Heathrow
£464
Find similar
Scandinavian Airlines
27 Feb
LHR17:30London Heathrow
30h 20m
2 stops
IAD18:50Washington, D.C. Dulles Intl
9 Mar
IAD21:30Washington, D.C. Dulles Intl
14h 30m
1 stop
LHR16:00London Heathrow
£465
Find similar
Scandinavian Airlines
16 Feb
LHR19:50London Heathrow
50h 25m
2 stops
IAD17:15Washington, D.C. Dulles Intl
19 Feb
IAD20:30Washington, D.C. Dulles Intl
14h 30m
1 stop
LHR16:00London Heathrow
£470
Find similar

British Airways flights from London Heathrow Airport to District of Columbia

Our best British Airways deals on London Heathrow Airport to District of Columbia flight tickets
British Airways
20 Jan
LHR07:30London Heathrow
20h 42m
2 stops
IAD23:12Washington, D.C. Dulles Intl
3 Feb
IAD17:46Washington, D.C. Dulles Intl
10h 29m
1 stop
LHR09:15London Heathrow
£466
Find similar
British Airways
30 Jan
LHR12:10London Heathrow
8h 25m
IAD15:35Washington, D.C. Dulles Intl
1 Feb
IAD21:45Washington, D.C. Dulles Intl
7h 15m
LHR10:00London Heathrow
£467
Find similar
British Airways
16 Jan
LHR16:25London Heathrow
8h 30m
IAD19:55Washington, D.C. Dulles Intl
29 Jan
IAD18:20Washington, D.C. Dulles Intl
7h 10m
LHR06:30London Heathrow
£467
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 18 December 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 20/1

15:35-17:15

2 stops30h 40m

Washington, D.C. Dulles Intl

Thu 5/2

20:30-16:00

1 stop14h 30m

£464

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 27/2

17:30-18:50

2 stops30h 20m

Washington, D.C. Dulles Intl

Mon 9/3

21:30-16:00

1 stop14h 30m

£465

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 20/1

10:20-22:03

2 stops16h 43m

Washington, D.C. Reagan-National

Tue 3/2

17:45-17:00

2 stops18h 15m

£465

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 20/1

07:30-23:12

2 stops20h 42m

Washington, D.C. Dulles Intl

Tue 3/2

18:20-06:30

Nonstop7h 10m

£466

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 30/1

12:10-15:35

Nonstop8h 25m

Washington, D.C. Dulles Intl

Sun 1/2

21:45-10:00

Nonstop7h 15m

£467

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 21/4

10:20-22:33

2 stops17h 13m

Washington, D.C. Reagan-National

Tue 28/4

17:49-21:40

1 stop22h 51m

£467

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 16/1

16:25-19:55

Nonstop8h 30m

Washington, D.C. Dulles Intl

Thu 29/1

18:20-06:30

Nonstop7h 10m

£467

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 28/2

12:15-18:30

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 8/3

20:40-10:50

1 stop10h 10m

£468

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 24/2

09:20-17:49

1 stop13h 29m

Washington, D.C. Reagan-National

Sun 1/3

14:05-06:55

1 stop11h 50m

£468

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 1/3

09:20-16:04

1 stop11h 44m

Washington, D.C. Reagan-National

Wed 11/3

16:59-06:55

1 stop9h 56m

£474

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 £485, 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 November is also very affordable. Most momondo users find prices during this month for around £496.

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

Our data shows that Thursday 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 £652. 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 £518. 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 £611.

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 £570 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 £509 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 33% 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

£543

Fastest flight time

8h 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 £543. The best return flight deal from London Heathrow Airport to District of Columbia found on momondo in the last 72 hours is £512.
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 are 2 airports in District of Columbia. From London Heathrow Airport there are direct flights to 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 £189Free CancellationRating
7.9
8,008 reviews
Search Delta flights
PLAYPriceFrom £275Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom £350Free CancellationRating
7.2
2,092 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom £366Free CancellationRating
7.0
591 reviews
Search Icelandair flights
Aer LingusPriceFrom £384Free CancellationRating
7.2
1,399 reviews
Search Aer Lingus flights
United AirlinesPriceFrom £407Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
JetBluePriceFrom £415Free CancellationRating
7.2
2,896 reviews
Search JetBlue flights
LufthansaPriceFrom £422Free CancellationRating
6.8
7,637 reviews
Search Lufthansa flights
FinnairPriceFrom £423Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
Scandinavian AirlinesPriceFrom £425Free CancellationRating
7.4
1,609 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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