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Cheap flights from District of Columbia to London from £277

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 8/1. 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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Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
20:30 - 16:25
IAD
-
LHR
14h 55m2 stops
Scandinavian Airlines Logo
07:05 - 18:15
LHR
-
IAD
15h 10m2 stops
£428Scandinavian Airlines
Do, 5 Mrz - Mo, 9 Mrz
Scandinavian Airlines Logo
20:30 - 18:30
IAD
-
LHR
17h 00m1 stop
Scandinavian Airlines Logo
15:35 - 18:15
LHR
-
IAD
30h 40m2 stops
£428Scandinavian Airlines
Sa, 28 Feb - So, 8 Mrz
Austrian Airlines Logo
17:17 - 05:55
IAD
-
LHR
31h 38m1 stop
Austrian Airlines Logo
09:05 - 15:10
LHR
-
IAD
35h 05m2 stops
£429Austrian Airlines
Sa, 10 Jan - Sa, 17 Jan
Scandinavian Airlines Logo
20:30 - 16:25
IAD
-
LHR
14h 55m2 stops
Scandinavian Airlines Logo
19:50 - 17:15
LHR
-
IAD
26h 25m2 stops
£430Scandinavian Airlines
Mi, 18 Feb - Di, 24 Feb
Scandinavian Airlines Logo
20:30 - 17:40
IAD
-
LHR
16h 10m1 stop
Scandinavian Airlines Logo
19:50 - 18:15
LHR
-
IAD
26h 25m2 stops
£431Scandinavian Airlines
Mo, 2 Mrz - Di, 10 Mrz
Multiple Airlines Logo
17:17 - 11:15
IAD
-
LHR
12h 58m1 stop
Multiple Airlines Logo
08:30 - 15:50
LHR
-
IAD
12h 20m1 stop
£434Multiple Airlines
Fr, 16 Jan - Mo, 19 Jan
Air Canada Logo
12:55 - 09:20
DCA
-
LHR
15h 25m1 stop
Air Canada Logo
06:50 - 15:33
LHR
-
DCA
13h 43m2 stops
£442Air Canada
So, 11 Jan - Sa, 24 Jan
Air Canada Logo
12:55 - 07:10
DCA
-
LHR
13h 15m2 stops
Air Canada Logo
06:50 - 15:33
LHR
-
DCA
13h 43m2 stops
£445Air Canada
So, 11 Jan - Sa, 24 Jan
Multiple Airlines Logo
12:55 - 07:10
DCA
-
LHR
13h 15m2 stops
Multiple Airlines Logo
06:50 - 15:33
LHR
-
DCA
13h 43m2 stops
£448Multiple Airlines
Do, 29 Jan - Do, 5 Feb
JetBlue Logo
15:25 - 06:55
DCA
-
LHR
10h 30m1 stop
JetBlue Logo
08:25 - 14:40
LHR
-
DCA
11h 15m1 stop
£450JetBlue
Do, 22 Jan - Mi, 13 Mai

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
13 Jan
IAD17:25Washington, D.C. Dulles Intl
12h 50m
1 stop
LHR11:15London Heathrow
19 Jan
LHR20:05London Heathrow
24h 05m
1 stop
IAD15:10Washington, D.C. Dulles Intl
£437
Find similar
SWISS
15 Jan
IAD20:30Washington, D.C. Dulles Intl
14h 50m
1 stop
LHR16:20London Heathrow
18 Jan
LHR06:00London Heathrow
14h 10m
1 stop
IAD15:10Washington, D.C. Dulles Intl
£445
Find similar
SWISS
15 Jan
IAD20:30Washington, D.C. Dulles Intl
11h 30m
1 stop
LHR13:00London Heathrow
7 Apr
LHR08:45London Heathrow
12h 35m
1 stop
IAD16:20Washington, D.C. Dulles Intl
£452
Find similar

Icelandair flights from District of Columbia to London Heathrow Airport

Our best Icelandair deals on District of Columbia to London Heathrow Airport flight tickets
Icelandair
9 Jan
IAD19:40Washington, D.C. Dulles Intl
18h 50m
1 stop
LHR19:30London Heathrow
19 Jan
LHR20:35London Heathrow
26h 55m
1 stop
IAD18:30Washington, D.C. Dulles Intl
£440
Find similar
Icelandair
13 May
IAD23:35Washington, D.C. Dulles Intl
15h 45m
1 stop
LHR20:20London Heathrow
21 May
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl
£449
Find similar
Icelandair
1 May
IAD20:30Washington, D.C. Dulles Intl
10h 25m
1 stop
LHR11:55London Heathrow
3 May
LHR21:25London Heathrow
26h 55m
1 stop
IAD19:20Washington, D.C. Dulles Intl
£462
Find similar

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 16 Dezember 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

Do 5/3

20:30-16:25

2 stops14h 55m

London Heathrow

Mo 9/3

07:05-18:15

2 stops15h 10m

£428

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sa 28/2

20:30-18:30

1 stop17h 00m

London Heathrow

So 8/3

15:35-18:15

2 stops30h 40m

£428

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sa 10/1

17:17-05:55

1 stop31h 38m

London Heathrow

Sa 17/1

09:05-15:10

2 stops35h 05m

£429

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mi 18/2

20:30-16:25

2 stops14h 55m

London Heathrow

Di 24/2

19:50-17:15

2 stops26h 25m

£430

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mo 2/3

20:30-17:40

1 stop16h 10m

London Heathrow

Di 10/3

19:50-18:15

2 stops26h 25m

£431

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fr 16/1

17:17-11:15

1 stop12h 58m

London Heathrow

Mo 19/1

08:30-15:50

1 stop12h 20m

£434

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

So 11/1

12:55-09:20

1 stop15h 25m

London Heathrow

Sa 24/1

06:50-15:33

2 stops13h 43m

£442

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

So 11/1

12:55-07:10

2 stops13h 15m

London Heathrow

Sa 24/1

06:50-15:33

2 stops13h 43m

£445

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Do 29/1

12:55-07:10

2 stops13h 15m

London Heathrow

Do 5/2

06:50-15:33

2 stops13h 43m

£448

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Do 22/1

15:25-06:55

1 stop10h 30m

London Heathrow

Mi 13/5

08:25-14:40

1 stop11h 15m

£450

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, August 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 £492. The month of September is another great option to travel to London Heathrow Airport, with average flight prices from District of Columbia averaging around £492.

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 £530. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Friday is £606.

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 afternoon. momondo users have found flights departing from District of Columbia to London Heathrow Airport in the afternoon for as low as £563. 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 evening when prices are £576 on average. Flights to London Heathrow Airport from District of Columbia in the evening 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 Baltimore/Washington 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 £563 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 £526 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.

Can stopping save me money on District of Columbia to London Heathrow Airport flights?

You could potentially save up to 40% on your flight if you consider stops on a District of Columbia to London Heathrow Airport flight.

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

£335

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 £335. The best return flight deal from District of Columbia to London Heathrow Airport found on momondo in the last 72 hours is £481.
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.
Search flight deals

  • 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 £310Free CancellationRating
6.8
7,631 reviews
Search Lufthansa flights
IcelandairPriceFrom £369Free CancellationRating
7.0
590 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £383Free CancellationRating
7.5
675 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £387Free CancellationRating
6.7
7,579 reviews
Search British Airways flights
Air FrancePriceFrom £398Free CancellationRating
7.4
1,506 reviews
Search Air France flights
IberiaPriceFrom £459Free CancellationRating
7.0
3,052 reviews
Search Iberia flights
United AirlinesPriceFrom £504Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
American AirlinesPriceFrom £513Free CancellationRating
7.2
11,048 reviews
Search American Airlines flights

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
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Slough
Northampton
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Stratford-upon-Avon
Southend-on-Sea
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Ipswich
Ilford
Poole
Guildford
Swanage
Hayes
Chelmsford
Dover
Worthing

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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