What airlines fly to London Heathrow Airport?

British Airways, United Airlines and Iberia 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 53% 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.

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

Icelandair, Air Canada, and British Airways are the most popular carriers operating from District of Columbia to London Heathrow

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.

$370 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 day?

As of December 2025, 25 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 6:00PM, with 100% of daily flights taking off in the evening.

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

As of December 2025, 178 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 Mon, with 15% of weekly flights taking off on this day.

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Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 pm - 6:30 pm

IAD

LHR

17h 00m1 stop

9:05 pm - 5:15 pm

LHR

IAD

49h 10m2 stops

$573Scandinavian Airlines

Mon, Jan 12 - Mon, Jan 19

8:30 pm - 6:50 pm

IAD

LHR

17h 20m2 stops

6:40 am - 3:20 pm

LHR

IAD

13h 40m1 stop

$574Scandinavian Airlines

Mon, Jan 12 - Mon, Jan 26

8:30 pm - 4:25 pm

IAD

LHR

14h 55m2 stops

7:50 pm - 5:15 pm

LHR

IAD

26h 25m2 stops

$575Scandinavian Airlines

Wed, Feb 18 - Tue, Feb 24

7:40 pm - 10:50 am

IAD

LHR

10h 10m1 stop

8:35 pm - 6:30 pm

LHR

IAD

26h 55m1 stop

$576Icelandair

Thu, Jan 8 - Sun, Jan 11

7:40 pm - 7:30 pm

IAD

LHR

18h 50m1 stop

12:15 pm - 6:30 pm

LHR

IAD

11h 15m1 stop

$581Icelandair

Tue, Jan 6 - Thu, Jan 15

5:17 pm - 11:15 am

IAD

LHR

12h 58m1 stop

8:30 am - 3:50 pm

LHR

IAD

12h 20m1 stop

$582Multiple Airlines

Thu, Feb 12 - Tue, Feb 17

4:15 pm - 7:10 am

DCA

LHR

9h 55m1 stop

6:50 am - 3:33 pm

LHR

DCA

13h 43m2 stops

$595Air Canada

Thu, Jan 29 - Thu, Feb 5

12:55 pm - 7:10 am

DCA

LHR

13h 15m2 stops

6:50 am - 3:33 pm

LHR

DCA

13h 43m2 stops

$599Multiple Airlines

Thu, Jan 29 - Thu, Feb 5

4:10 pm - 7:10 am

DCA

LHR

10h 00m1 stop

6:50 am - 3:31 pm

LHR

DCA

13h 41m2 stops

$612Air Canada

Wed, Dec 31 - Wed, Jan 14

6:00 am - 8:45 pm

DCA

LHR

9h 45m1 stop

12:20 pm - 10:47 pm

LHR

DCA

15h 27m1 stop

$614JetBlue

Fri, Jan 30 - Fri, Feb 6

Austrian Airlines flights from District of Columbia to London Heathrow Airport

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

Austrian Airlines

Jan 14

IAD5:17 pmWashington, D.C. Dulles Intl

12h 58m

1 stop

LHR11:15 amLondon Heathrow

Jan 21

LHR6:00 amLondon Heathrow

13h 40m

1 stop

IAD2:40 pmWashington, D.C. Dulles Intl

$583

Find similar

Austrian Airlines

Dec 24

IAD6:20 pmWashington, D.C. Dulles Intl

7h 20m

LHR6:40 amLondon Heathrow

Jan 9

LHR12:05 pmLondon Heathrow

8h 30m

IAD3:35 pmWashington, D.C. Dulles Intl

$797

Find similar

Austrian Airlines

Dec 25

IAD5:31 pmWashington, D.C. Dulles Intl

12h 44m

1 stop

LHR11:15 amLondon Heathrow

Jan 9

LHR7:25 amLondon Heathrow

13h 35m

1 stop

IAD4:00 pmWashington, D.C. Dulles Intl

$823

Find similar

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

Jan 11

IAD8:30 pmWashington, D.C. Dulles Intl

20h 10m

1 stop

LHR9:40 pmLondon Heathrow

Jan 18

LHR6:00 amLondon Heathrow

14h 10m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$584

Find similar

SWISS

Jan 13

IAD5:25 pmWashington, D.C. Dulles Intl

12h 50m

1 stop

LHR11:15 amLondon Heathrow

Jan 19

LHR8:05 pmLondon Heathrow

24h 05m

1 stop

IAD3:10 pmWashington, D.C. Dulles Intl

$585

Find similar

SWISS

Dec 31

IAD5:25 pmWashington, D.C. Dulles Intl

17h 55m

1 stop

LHR4:20 pmLondon Heathrow

Jan 14

LHR6:00 amLondon Heathrow

14h 30m

1 stop

IAD3:30 pmWashington, D.C. Dulles Intl

$587

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

Mon 1/12

8:30 pm-6:30 pm

1 stop17h 00m

London Heathrow

Mon 1/19

9:05 pm-5:15 pm

2 stops49h 10m

$573

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Mon 1/12

8:30 pm-6:50 pm

2 stops17h 20m

London Heathrow

Mon 1/26

6:40 am-3:20 pm

1 stop13h 40m

$574

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 2/18

8:30 pm-4:25 pm

2 stops14h 55m

London Heathrow

Tue 2/24

7:50 pm-5:15 pm

2 stops26h 25m

$575

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 1/8

7:40 pm-10:50 am

1 stop10h 10m

London Heathrow

Sun 1/11

8:35 pm-6:30 pm

1 stop26h 55m

$576

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 1/6

7:40 pm-7:30 pm

1 stop18h 50m

London Heathrow

Thu 1/15

12:15 pm-6:30 pm

1 stop11h 15m

$581

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Thu 2/12

5:17 pm-11:15 am

1 stop12h 58m

London Heathrow

Tue 2/17

8:30 am-3:50 pm

1 stop12h 20m

$582

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 1/29

4:15 pm-7:10 am

1 stop9h 55m

London Heathrow

Thu 2/5

6:50 am-3:33 pm

2 stops13h 43m

$595

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Thu 1/29

12:55 pm-7:10 am

2 stops13h 15m

London Heathrow

Thu 2/5

6:50 am-3:33 pm

2 stops13h 43m

$599

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Wed 12/31

4:10 pm-7:10 am

1 stop10h 00m

London Heathrow

Wed 1/14

6:50 am-3:31 pm

2 stops13h 41m

$612

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

Fri 1/30

6:00 am-8:45 pm

1 stop9h 45m

London Heathrow

Fri 2/6

12:20 pm-10:47 pm

1 stop15h 27m

$614

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 August 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 August, then September is your next best option. Flight prices from District of Columbia to London Heathrow Airport during September average around $658.

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 $760. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $893.

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 $812. 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 evening are often more expensive with an average ticket price of $813.

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 $753 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 $703 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 25% 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	$434
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 $434. The best round-trip flight deal from District of Columbia to London Heathrow Airport found on momondo in the last 72 hours is $695.

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 15 as of December 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 41.35% of all bookings. The subsequent popular models are Airbus A350-1000 at 12.53%, Boeing 767-400 at 10.63%, and Boeing 787-9 Dreamliner at 9.40%.

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 2,895 reviews	Search JetBlue flights
TAP AIR PORTUGAL	PriceFrom $395	Free Cancellation	Rating 7.2 2,091 reviews	Search TAP AIR PORTUGAL flights
Icelandair	PriceFrom $427	Free Cancellation	Rating 7.0 591 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $429	Free Cancellation	Rating 7.4 1,606 reviews	Search Scandinavian Airlines flights
PLAY	PriceFrom $429	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Lufthansa	PriceFrom $447	Free Cancellation	Rating 6.8 7,632 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom $497	Free Cancellation	Rating 7.5 675 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
United Airlines	PriceFrom $506	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
KLM	PriceFrom $520	Free Cancellation	Rating 7.7 1,430 reviews	Search KLM flights

Gatwick

Hounslow

Milton Keynes

Dover

Luton

Slough

Guildford

Hayes

Dartford

Stratford-upon-Avon

Crawley

Brentwood

Salisbury

Wembley

Watford

Ilford

Cobham

Folkestone

Romford

Richmond

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 $370

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 1/12. 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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Big names and deals

Filter for what you want

Filter for what you want

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Find the cheapest flights from District of Columbia to London

Cheap round-trip flights

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Cheap direct flights

Austrian Airlines flights from District of Columbia to London Heathrow Airport

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

SWISS flights from District of Columbia to London Heathrow Airport

Our best SWISS 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

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 $760. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $893.

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 25% 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?

Icelandair, Air Canada, and British Airways 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 December 2025, 25 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 6:00PM, with 100% 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 December 2025, 178 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 Mon, with 15% 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