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Cheap flights from District of Columbia to London from £182

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to London departing on 28/11. 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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Cheap return flights

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Aer Lingus Logo
18:05 - 08:05IAD-LHR
10h 00m1 stop
Aer Lingus Logo
12:10 - 19:30LHR-IAD
12h 20m1 stop
£416Aer Lingus
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Mon, 27 Oct - Thu, 6 Nov
Icelandair Logo
19:40 - 19:30IAD-LHR
18h 50m1 stop
Icelandair Logo
20:35 - 18:30LHR-IAD
26h 55m1 stop
£417Icelandair
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Sun, 7 Dec - Mon, 22 Dec
Scandinavian Airlines Logo
20:30 - 17:40IAD-LHR
16h 10m1 stop
Scandinavian Airlines Logo
06:40 - 18:15LHR-IAD
15h 35m2 stops
£421Scandinavian Airlines
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Mon, 2 Mar - Mon, 9 Mar
Virgin Atlantic Logo
22:20 - 10:50IAD-LHR
7h 30mdirect
Virgin Atlantic Logo
09:00 - 16:35LHR-IAD
12h 35m1 stop
£421Virgin Atlantic
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Mon, 24 Nov - Wed, 10 Dec
Scandinavian Airlines Logo
20:30 - 16:25IAD-LHR
14h 55m2 stops
Scandinavian Airlines Logo
06:40 - 17:15LHR-IAD
15h 35m1 stop
£422Scandinavian Airlines
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Wed, 10 Dec - Mon, 15 Dec
TAP AIR PORTUGAL Logo
17:30 - 17:30IAD-LHR
19h 00m1 stop
TAP AIR PORTUGAL Logo
12:25 - 21:00LHR-IAD
13h 35m1 stop
£423TAP AIR PORTUGAL
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Thu, 11 Dec - Fri, 26 Dec
TAP AIR PORTUGAL Logo
22:35 - 22:55IAD-LHR
19h 20m1 stop
TAP AIR PORTUGAL Logo
06:00 - 15:05LHR-IAD
14h 05m1 stop
£426TAP AIR PORTUGAL
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Sat, 4 Apr - Sun, 19 Apr
SWISS Logo
20:30 - 16:20IAD-LHR
14h 50m1 stop
SWISS Logo
06:00 - 16:40LHR-IAD
15h 40m1 stop
£428SWISS
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Sun, 2 Nov - Tue, 11 Nov
Virgin Atlantic Logo
22:20 - 10:50IAD-LHR
7h 30mdirect
Virgin Atlantic Logo
06:30 - 16:05LHR-IAD
14h 35m1 stop
£430Virgin Atlantic
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Mon, 17 Nov - Wed, 3 Dec
SWISS Logo
20:30 - 13:00IAD-LHR
11h 30m1 stop
SWISS Logo
20:05 - 16:40LHR-IAD
25h 35m1 stop
£442SWISS
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Sun, 23 Nov - Wed, 3 Dec

SWISS flights from District of Columbia to London Heathrow Airport

Our best SWISS deals on District of Columbia to London Heathrow Airport flight tickets
SWISS
2 Nov
IAD20:30Washington, D.C. Dulles Intl
14h 50m
1 stop
LHR16:20London Heathrow
11 Nov
LHR06:00London Heathrow
15h 40m
1 stop
IAD16:40Washington, D.C. Dulles Intl
£428
Find similar
SWISS
23 Nov
IAD20:30Washington, D.C. Dulles Intl
11h 30m
1 stop
LHR13:00London Heathrow
3 Dec
LHR20:05London Heathrow
25h 35m
1 stop
IAD16:40Washington, D.C. Dulles Intl
£442
Find similar
SWISS
19 Oct
IAD20:45Washington, D.C. Dulles Intl
17h 35m
1 stop
LHR19:20London Heathrow
27 Oct
LHR17:10London Heathrow
28h 30m
1 stop
IAD17:40Washington, D.C. Dulles Intl
£443
Find similar

JetBlue flights from District of Columbia to London Heathrow Airport

Our best JetBlue deals on District of Columbia to London Heathrow Airport flight tickets
JetBlue
29 Nov
DCA06:05Washington, D.C. Reagan-National
10h 55m
1 stop
LHR22:00London Heathrow
6 Dec
LHR12:20London Heathrow
15h 38m
1 stop
DCA22:58Washington, D.C. Reagan-National
£471
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JetBlue
25 Oct
DCA06:25Washington, D.C. Reagan-National
9h 20m
1 stop
LHR20:45London Heathrow
17 Nov
LHR08:05London Heathrow
11h 31m
1 stop
DCA14:36Washington, D.C. Reagan-National
£476
Find similar
JetBlue
13 Nov
DCA06:24Washington, D.C. Reagan-National
10h 16m
1 stop
LHR21:40London Heathrow
20 Nov
LHR09:20London Heathrow
13h 40m
1 stop
DCA18:00Washington, D.C. Reagan-National
£477
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momondo Fare Finder

 
Customise your flight search to find flights from District of Columbia to London Heathrow Airport 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 17 October 2025.
Use the filters below to find and compare flights from District of Columbia to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 27/10

18:05-08:05

1 stop10h 00m

London Heathrow

Thu 6/11

12:10-19:30

1 stop12h 20m

£416

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 7/12

19:40-19:30

1 stop18h 50m

London Heathrow

Mon 22/12

20:35-18:30

1 stop26h 55m

£417

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 2/3

20:30-17:40

1 stop16h 10m

London Heathrow

Mon 9/3

06:40-18:15

2 stops15h 35m

£421

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 24/11

22:20-10:50

Nonstop7h 30m

London Heathrow

Wed 10/12

09:00-16:35

1 stop12h 35m

£421

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 10/12

20:30-16:25

2 stops14h 55m

London Heathrow

Mon 15/12

06:40-17:15

1 stop15h 35m

£422

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 11/12

17:30-17:30

1 stop19h 00m

London Heathrow

Fri 26/12

12:25-21:00

1 stop13h 35m

£423

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sat 4/4

22:35-22:55

1 stop19h 20m

London Heathrow

Sun 19/4

06:00-15:05

1 stop14h 05m

£426

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 2/11

20:30-16:20

1 stop14h 50m

London Heathrow

Tue 11/11

06:00-16:40

1 stop15h 40m

£428

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 17/11

22:20-10:50

Nonstop7h 30m

London Heathrow

Wed 3/12

06:30-16:05

1 stop14h 35m

£430

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 23/11

20:30-13:00

1 stop11h 30m

London Heathrow

Wed 3/12

20:05-16:40

1 stop25h 35m

£442

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from District of Columbia to London Heathrow Airport

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 London Heathrow Airport?

In general, September is the cheapest month to fly from District of Columbia to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £490. The month of August is another great option to travel to London Heathrow Airport, with average flight prices from District of Columbia averaging around £491.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from District of Columbia is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £525. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £641.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from District of Columbia to London Heathrow Airport in the evening for as low as £576. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £584 on average. Flights to London Heathrow Airport from District of Columbia in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

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

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

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £565 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from District of Columbia for as low as £525 on momondo.

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

There are 4 cabin classes available to choose from on District of Columbia to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

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

Best price found

£280

Fastest flight time

7h 10m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from District of Columbia in the past 72 hours is £280. The best return flight deal from District of Columbia to London Heathrow Airport found on momondo in the last 72 hours is £510.
The fastest flight from District of Columbia to London Heathrow Airport takes 7h 10m
Direct flights go from District of Columbia to London Heathrow Airport every day.
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  • When did momondo last update prices for flights from District of Columbia to London Heathrow Airport?

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

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

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

    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 District of Columbia to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from District of Columbia to London Heathrow Airport

Compare and see reviews for airlines that fly from District of Columbia to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom £309Free CancellationRating
6.8
7,502 reviews
Search Lufthansa flights
IcelandairPriceFrom £368Free CancellationRating
7.0
556 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £381Free CancellationRating
7.5
670 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £385Free CancellationRating
6.7
7,459 reviews
Search British Airways flights
Air FrancePriceFrom £397Free CancellationRating
7.4
1,477 reviews
Search Air France flights
IberiaPriceFrom £457Free CancellationRating
7.0
2,995 reviews
Search Iberia flights
KLMPriceFrom £504Free CancellationRating
7.7
1,404 reviews
Search KLM flights
American AirlinesPriceFrom £513Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
United AirlinesPriceFrom £523Free CancellationRating
7.4
8,984 reviews
Search United Airlines flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Northampton
Slough
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Guildford
Poole
Swanage
Colchester
Dover
Hayes
Chelmsford

Why use momondo?

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

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 London from District of Columbia.

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

Yes. momondo allows you to filter the results for District of Columbia to London flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between District of Columbia and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from District of Columbia to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of District of Columbia to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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