What is the cheapest airline that flies from District of Columbia to London Heathrow?

TAP AIR PORTUGAL, JetBlue, and Scandinavian Airlines are the most popular carriers operating from District of Columbia to London Heathrow

What airlines fly to London Heathrow Airport?

British Airways, Iberia and United Airlines are the top three most popular airlines that fly to London Heathrow Airport from District of Columbia according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 17 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

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

The number of operators available for flights from District of Columbia to London Heathrow Airport is 16 as of October 2025.

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 required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$245 Cheap Flights from District of Columbia to London Heathrow Airport in 2025/26

Q: How many flights depart from District of Columbia to London Heathrow Airport on average per week?

As of October 2025, 171 flights take off from District of Columbia and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.

Q: How many flights depart from District of Columbia to London Heathrow Airport on average per day?

As of October 2025, 24 flights take off from District of Columbia and land in London Heathrow Airport each day. The most common flight departure time for this route is 10:00PM, with 76% of daily flights taking off in the evening.

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Cheap round-trip flights

Enter your travel dates to find the best prices.

12:30 pm - 4:00 pmIAD-LHR

22h 30m2 stops

6:40 pm - 6:50 pmLHR-IAD

29h 10m1 stop

$553Scandinavian Airlines

Find Deal

Sun, Jan 18 - Fri, Jan 23

12:11 pm - 4:00 pmIAD-LHR

22h 49m2 stops

6:40 pm - 5:15 pmLHR-IAD

27h 35m1 stop

$555Scandinavian Airlines

Find Deal

Fri, Nov 14 - Tue, Nov 18

6:05 pm - 8:05 amIAD-LHR

10h 00m1 stop

8:50 am - 3:35 pmLHR-IAD

11h 45m1 stop

$556Aer Lingus

Find Deal

Wed, Oct 29 - Wed, Nov 5

6:05 pm - 9:05 amIAD-LHR

11h 00m1 stop

7:50 am - 4:35 pmLHR-IAD

12h 45m1 stop

$557Aer Lingus

Find Deal

Sun, Oct 26 - Wed, Oct 29

10:30 pm - 9:35 pmIAD-LHR

18h 05m1 stop

6:00 am - 3:15 pmLHR-IAD

14h 15m1 stop

$559TAP AIR PORTUGAL

Find Deal

Fri, Nov 28 - Sat, Dec 6

7:40 pm - 7:30 pmIAD-LHR

18h 50m1 stop

8:35 pm - 6:30 pmLHR-IAD

26h 55m1 stop

$560Icelandair

Find Deal

Sun, Dec 7 - Mon, Dec 22

8:40 pm - 10:50 amIAD-LHR

10h 10m1 stop

8:35 pm - 7:30 pmLHR-IAD

26h 55m1 stop

$563Icelandair

Find Deal

Thu, Mar 19 - Fri, Mar 27

10:20 pm - 10:50 amIAD-LHR

7h 30mnonstop

9:00 am - 4:35 pmLHR-IAD

12h 35m1 stop

$566Virgin Atlantic

Find Deal

Mon, Nov 24 - Wed, Dec 10

5:30 pm - 12:40 pmIAD-LHR

14h 10m1 stop

6:00 am - 9:00 pmLHR-IAD

20h 00m1 stop

$568TAP AIR PORTUGAL

Find Deal

Thu, Dec 11 - Fri, Dec 26

12:11 pm - 6:20 amIAD-LHR

13h 09m1 stop

6:20 am - 4:35 pmLHR-IAD

15h 15m1 stop

$581Virgin Atlantic

Find Deal

Tue, Nov 25 - Thu, Dec 11

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

Nov 2

IAD8:30 pmWashington, D.C. Dulles Intl

14h 50m

1 stop

LHR4:20 pmLondon Heathrow

Nov 11

LHR6:00 amLondon Heathrow

15h 40m

1 stop

IAD4:40 pmWashington, D.C. Dulles Intl

$575

Find similar

SWISS

Oct 22

IAD8:45 pmWashington, D.C. Dulles Intl

11h 15m

1 stop

LHR1:00 pmLondon Heathrow

Oct 27

LHR8:05 pmLondon Heathrow

25h 35m

1 stop

IAD5:40 pmWashington, D.C. Dulles Intl

$594

Find similar

SWISS

Nov 30

IAD8:30 pmWashington, D.C. Dulles Intl

11h 30m

1 stop

LHR1:00 pmLondon Heathrow

Dec 12

LHR9:00 amLondon Heathrow

12h 40m

1 stop

IAD4:40 pmWashington, D.C. Dulles Intl

$595

Find similar

Iberia flights from District of Columbia to London Heathrow Airport

Our best Iberia deals on District of Columbia to London Heathrow Airport flight tickets

Iberia

Jan 28

IAD6:20 pmWashington, D.C. Dulles Intl

7h 10m

LHR6:30 amLondon Heathrow

Feb 3

LHR12:10 pmLondon Heathrow

8h 25m

IAD3:35 pmWashington, D.C. Dulles Intl

$587

Find similar

Iberia

Oct 22

DCA2:55 pmWashington, D.C. Reagan-National

10h 25m

1 stop

LHR6:20 amLondon Heathrow

Oct 29

LHR3:35 pmLondon Heathrow

11h 22m

1 stop

DCA10:57 pmWashington, D.C. Reagan-National

$626

Find similar

Iberia

Oct 24

DCA2:55 pmWashington, D.C. Reagan-National

10h 25m

1 stop

LHR6:20 amLondon Heathrow

Oct 28

LHR1:30 pmLondon Heathrow

11h 29m

1 stop

DCA8:59 pmWashington, D.C. Reagan-National

$649

Find similar

momondo Fare Finder

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

Sun 1/18

12:30 pm-4:00 pm

2 stops22h 30m

London Heathrow

Fri 1/23

6:40 pm-6:50 pm

1 stop29h 10m

$553

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 11/14

12:11 pm-4:00 pm

2 stops22h 49m

London Heathrow

Tue 11/18

6:40 pm-5:15 pm

1 stop27h 35m

$555

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 10/29

6:05 pm-8:05 am

1 stop10h 00m

London Heathrow

Wed 11/5

8:50 am-3:35 pm

1 stop11h 45m

$556

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 10/26

6:05 pm-9:05 am

1 stop11h 00m

London Heathrow

Wed 10/29

7:50 am-4:35 pm

1 stop12h 45m

$557

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Fri 11/28

10:30 pm-9:35 pm

1 stop18h 05m

London Heathrow

Sat 12/6

6:00 am-3:15 pm

1 stop14h 15m

$559

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Sun 12/7

7:40 pm-7:30 pm

1 stop18h 50m

London Heathrow

Mon 12/22

8:35 pm-6:30 pm

1 stop26h 55m

$560

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 3/19

8:40 pm-10:50 am

1 stop10h 10m

London Heathrow

Fri 3/27

8:35 pm-7:30 pm

1 stop26h 55m

$563

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 11/24

10:20 pm-10:50 am

Nonstop7h 30m

London Heathrow

Wed 12/10

9:00 am-4:35 pm

1 stop12h 35m

$566

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 12/11

5:30 pm-12:40 pm

1 stop14h 10m

London Heathrow

Fri 12/26

6:00 am-9:00 pm

1 stop20h 00m

$568

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 11/25

12:11 pm-6:20 am

1 stop13h 09m

London Heathrow

Thu 12/11

6:20 am-4:35 pm

1 stop15h 15m

$581

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to London Heathrow Airport?

The month of September is, on average, the cheapest month to fly to London Heathrow Airport from District of Columbia, with most prices found around $658. If you’re not able to fly to London Heathrow Airport in September, then August is your next best option. Flight prices from District of Columbia to London Heathrow Airport during August average around $659.

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $765. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $905.

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 $816. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights in the afternoon are often more expensive with an average ticket price of $823.

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 $759 when searching weeks out. 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 $705 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 17% 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	$384
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 $384. The best round-trip flight deal from District of Columbia to London Heathrow Airport found on momondo in the last 72 hours is $678.

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 are updated daily.
How many operators does momondo search for flights from District of Columbia to London Heathrow Airport?
The number of operators available for flights from District of Columbia to London Heathrow Airport is 16 as of October 2025.
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 required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from District of Columbia to London Heathrow Airport?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to London Heathrow Airport is Boeing 777, representing 40.87% of all bookings. The subsequent popular models are Airbus A380-800 at 10.34%, Boeing 787-8 Dreamliner at 9.46%, and Airbus A350-1000 at 8.48%.

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
JetBlue	PriceFrom $31	Free Cancellation	Rating 7.2 2,907 reviews	Search JetBlue flights
PLAY	PriceFrom $372	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
TAP AIR PORTUGAL	PriceFrom $395	Free Cancellation	Rating 7.1 2,016 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $397	Free Cancellation	Rating 6.8 7,497 reviews	Search Lufthansa flights
Scandinavian Airlines	PriceFrom $424	Free Cancellation	Rating 7.4 1,533 reviews	Search Scandinavian Airlines flights
Icelandair	PriceFrom $433	Free Cancellation	Rating 7.0 556 reviews	Search Icelandair flights
Virgin Atlantic	PriceFrom $497	Free Cancellation	Rating 7.5 670 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
United Airlines	PriceFrom $506	Free Cancellation	Rating 7.4 8,982 reviews	Search United Airlines flights
KLM	PriceFrom $520	Free Cancellation	Rating 7.7 1,404 reviews	Search KLM flights

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Hounslow

Milton Keynes

Luton

Dover

Slough

Guildford

Dartford

Crawley

Hayes

Stratford-upon-Avon

Brentwood

Salisbury

Chelmsford

Colchester

Folkestone

Romford

Ilford

Swindon

Cobham

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?

momondo does allow users to show only those flights to London from District of Columbia which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from District of Columbia to London.

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.

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from District of Columbia to London from $245

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 11/28. 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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Filter for what you want

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SWISS flights from District of Columbia to London Heathrow Airport

Our best SWISS deals on District of Columbia to London Heathrow Airport flight tickets

Iberia flights from District of Columbia to London Heathrow Airport

Our best Iberia deals on District of Columbia to London Heathrow Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to London Heathrow Airport that are best for you.

See travel insights to London from

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?

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

Our data shows that Wednesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $765. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $905.

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

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?

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 17% on your flight if you consider stops on a District of Columbia to London Heathrow Airport flight.

What is the cheapest airline that flies from District of Columbia to London Heathrow?

TAP AIR PORTUGAL, JetBlue, and Scandinavian Airlines are the most popular carriers operating from District of Columbia to London Heathrow

What airlines fly to London Heathrow Airport?

How many flights depart from District of Columbia to London Heathrow Airport on average per day?

As of October 2025, 24 flights take off from District of Columbia and land in London Heathrow Airport each day. The most common flight departure time for this route is 10:00PM, with 76% of daily flights taking off in the evening.

How many flights depart from District of Columbia to London Heathrow Airport on average per week?

As of October 2025, 171 flights take off from District of Columbia and land in London Heathrow Airport each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.

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

Fastest flight time

Direct flights

When did momondo last update prices for flights from District of Columbia to London Heathrow Airport?

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?

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

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

Traveling to a place near London?

Why use momondo?

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

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

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

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

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo