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

TAP AIR PORTUGAL and JetBlue 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 51% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 18 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 17 as of August 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.

$266 Cheap Flights from District of Columbia to London Heathrow Airport in 2025

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

As of August 2025, 196 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 14% 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 August 2025, 28 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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Find the cheapest flights from District of Columbia to London

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

10:05 pm - 4:00 pmIAD-LHR

12h 55m1 stop

6:40 am - 6:50 pmLHR-IAD

17h 10m1 stop

$495Scandinavian Airlines

Find Deal

vie., oct. 24 - sáb., nov. 8

10:05 pm - 6:30 pmIAD-LHR

15h 25m1 stop

6:40 pm - 6:15 pmLHR-IAD

27h 35m1 stop

$496Scandinavian Airlines

Find Deal

jue., oct. 23 - dom., oct. 26

10:05 pm - 4:25 pmIAD-LHR

13h 20m2 stops

6:40 am - 7:59 pmLHR-IAD

18h 19m1 stop

$497Scandinavian Airlines

Find Deal

mié., oct. 15 - jue., oct. 23

5:50 pm - 5:45 pmIAD-LHR

18h 55m1 stop

7:50 pm - 3:20 pmLHR-IAD

24h 30m1 stop

$510TAP AIR PORTUGAL

Find Deal

mié., oct. 8 - mié., oct. 15

5:30 pm - 9:35 pmIAD-LHR

23h 05m1 stop

6:30 pm - 2:35 pmLHR-IAD

25h 05m1 stop

$511TAP AIR PORTUGAL

Find Deal

mar., dic. 9 - lun., dic. 15

8:30 pm - 8:20 pmIAD-LHR

18h 50m1 stop

9:25 pm - 7:20 pmLHR-IAD

26h 55m1 stop

$549Icelandair

Find Deal

mar., sep. 30 - mar., oct. 14

8:30 pm - 11:55 amIAD-LHR

10h 25m1 stop

9:25 pm - 7:20 pmLHR-IAD

26h 55m1 stop

$551Icelandair

Find Deal

dom., sep. 21 - mar., sep. 30

6:00 am - 6:30 amDCA-LHR

19h 30m2 stops

6:50 am - 3:51 pmLHR-DCA

14h 01m2 stops

$588Air Canada

Find Deal

lun., sep. 8 - mar., sep. 23

6:00 am - 9:35 amDCA-LHR

22h 35m1 stop

6:50 am - 3:51 pmLHR-DCA

14h 01m2 stops

$593Air Canada

Find Deal

lun., sep. 8 - mar., sep. 23

4:00 pm - 7:15 amDCA-LHR

10h 15m1 stop

9:30 am - 3:51 pmLHR-DCA

11h 21m1 stop

$597Lufthansa

Find Deal

mié., oct. 1 - mié., oct. 8

Scandinavian Airlines flights from District of Columbia to London Heathrow Airport

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

Scandinavian Airlines

Oct 24

IAD10:05 pmWashington, D.C. Dulles Intl

12h 55m

1 stop

LHR4:00 pmLondon Heathrow

Nov 8

LHR6:40 amLondon Heathrow

17h 10m

1 stop

IAD6:50 pmWashington, D.C. Dulles Intl

$495

Find similar

Scandinavian Airlines

Oct 23

IAD10:05 pmWashington, D.C. Dulles Intl

15h 25m

1 stop

LHR6:30 pmLondon Heathrow

Oct 26

LHR6:40 pmLondon Heathrow

27h 35m

1 stop

IAD6:15 pmWashington, D.C. Dulles Intl

$496

Find similar

Scandinavian Airlines

Oct 15

IAD10:05 pmWashington, D.C. Dulles Intl

13h 20m

2 stops

LHR4:25 pmLondon Heathrow

Oct 23

LHR6:40 amLondon Heathrow

18h 19m

1 stop

IAD7:59 pmWashington, D.C. Dulles Intl

$497

Find similar

TAP AIR PORTUGAL flights from District of Columbia to London Heathrow Airport

Our best TAP AIR PORTUGAL deals on District of Columbia to London Heathrow Airport flight tickets

TAP AIR PORTUGAL

Oct 8

IAD5:50 pmWashington, D.C. Dulles Intl

18h 55m

1 stop

LHR5:45 pmLondon Heathrow

Oct 15

LHR7:50 pmLondon Heathrow

24h 30m

1 stop

IAD3:20 pmWashington, D.C. Dulles Intl

$510

Find similar

TAP AIR PORTUGAL

Dec 9

IAD5:30 pmWashington, D.C. Dulles Intl

23h 05m

1 stop

LHR9:35 pmLondon Heathrow

Dec 15

LHR6:30 pmLondon Heathrow

25h 05m

1 stop

IAD2:35 pmWashington, D.C. Dulles Intl

$511

Find similar

TAP AIR PORTUGAL

Sep 15

IAD5:45 pmWashington, D.C. Dulles Intl

20h 05m

1 stop

LHR6:50 pmLondon Heathrow

Nov 10

LHR6:30 pmLondon Heathrow

25h 05m

1 stop

IAD2:35 pmWashington, D.C. Dulles Intl

$539

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

vie. 10/24

10:05 pm-4:00 pm

1 stop12h 55m

London Heathrow

sáb. 11/8

6:40 am-6:50 pm

1 stop17h 10m

$495

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

jue. 10/23

10:05 pm-6:30 pm

1 stop15h 25m

London Heathrow

dom. 10/26

6:40 pm-6:15 pm

1 stop27h 35m

$496

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mié. 10/15

10:05 pm-4:25 pm

2 stops13h 20m

London Heathrow

jue. 10/23

6:40 am-7:59 pm

1 stop18h 19m

$497

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mié. 10/8

5:50 pm-5:45 pm

1 stop18h 55m

London Heathrow

mié. 10/15

7:50 pm-3:20 pm

1 stop24h 30m

$510

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mar. 12/9

5:30 pm-9:35 pm

1 stop23h 05m

London Heathrow

lun. 12/15

6:30 pm-2:35 pm

1 stop25h 05m

$511

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

mar. 9/30

8:30 pm-8:20 pm

1 stop18h 50m

London Heathrow

mar. 10/14

9:25 pm-7:20 pm

1 stop26h 55m

$549

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

dom. 9/21

8:30 pm-11:55 am

1 stop10h 25m

London Heathrow

mar. 9/30

9:25 pm-7:20 pm

1 stop26h 55m

$551

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

lun. 9/8

6:00 am-6:30 am

2 stops19h 30m

London Heathrow

mar. 9/23

6:50 am-3:51 pm

2 stops14h 01m

$588

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

lun. 9/8

6:00 am-9:35 am

1 stop22h 35m

London Heathrow

mar. 9/23

6:50 am-3:51 pm

2 stops14h 01m

$593

Washington, D.C.London

DCA - LHR

DCALHR

Washington, D.C. Reagan-National

mié. 10/1

4:00 pm-7:15 am

1 stop10h 15m

London Heathrow

mié. 10/8

9:30 am-3:51 pm

1 stop11h 21m

$597

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 $679. 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 $683.

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 $757. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $902.

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 morning. momondo users have found flights departing from District of Columbia to London Heathrow Airport in the morning for as low as $761. 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 $824.

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 $754 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 $693 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	$266
Fastest flight time	9h 15m
Direct flights	Every day

The best one-way flight to London Heathrow Airport from District of Columbia in the past 72 hours is $266. The best round-trip flight deal from District of Columbia to London Heathrow Airport found on momondo in the last 72 hours is $495.

The fastest flight from District of Columbia to London Heathrow Airport takes 9h 15m

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 17 as of August 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 37.62% of all bookings. The subsequent popular models are Airbus A380-800 at 15.63%, Boeing 787-8 Dreamliner at 9.24%, and Airbus A380 at 6.39%.

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 2,915 reviews	Search JetBlue flights
PLAY	PriceFrom $379	Free Cancellation	Rating 7.0 103 reviews	Search PLAY flights
Scandinavian Airlines	PriceFrom $409	Free Cancellation	Rating 7.4 1,470 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $421	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Icelandair	PriceFrom $433	Free Cancellation	Rating 7.0 527 reviews	Search Icelandair flights
TAP AIR PORTUGAL	PriceFrom $441	Free Cancellation	Rating 7.1 1,954 reviews	Search TAP AIR PORTUGAL flights
Lufthansa	PriceFrom $447	Free Cancellation	Rating 6.8 7,330 reviews	Search Lufthansa flights
Virgin Atlantic	PriceFrom $497	Free Cancellation	Rating 7.4 657 reviews	Search Virgin Atlantic flights
American Airlines	PriceFrom $497	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $506	Free Cancellation	Rating 7.4 8,925 reviews	Search United Airlines flights

Hounslow

Gatwick

Dover

Slough

Luton

Guildford

Milton Keynes

Dartford

Crawley

Hayes

Chelmsford

Stansted

Salisbury

Brentwood

Ilford

Swindon

Colchester

Folkestone

Stratford-upon-Avon

Watford

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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District of Columbia flight routes

Washington, D.C. Dulles Intl to Valparaiso Destin-Ft Walton Beach

Washington, D.C. Dulles Intl to Savannah/Hilton Head

Washington, D.C. Dulles Intl to Nashville Intl

Washington, D.C. Dulles Intl to South Bend/Michiana

Washington, D.C. Reagan-National to New York John F Kennedy Intl

Washington, D.C. Dulles Intl to Tweed-New Haven

Cheap flights from District of Columbia to London from $266

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 9/25. 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

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Scandinavian Airlines flights from District of Columbia to London Heathrow Airport

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

TAP AIR PORTUGAL flights from District of Columbia to London Heathrow Airport

Our best TAP AIR PORTUGAL 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 $757. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $902.

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.

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

TAP AIR PORTUGAL and JetBlue 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 August 2025, 28 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 August 2025, 196 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 14% 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