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Cheap flights from London Heathrow Airport to District of Columbia from $494

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to District of Columbia departing on 2/12. 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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Find the cheapest flights from London Heathrow Airport to District of Columbia

Cheap round-trip flights

Enter your travel dates to find the best prices.
TAP AIR PORTUGAL Logo
6:00 am - 3:05 pmLHR-IAD
14h 05m1 stop
TAP AIR PORTUGAL Logo
5:05 pm - 6:50 pmIAD-LHR
20h 45m1 stop
$543TAP AIR PORTUGAL
Find Deal
Tue, Apr 14 - Tue, Apr 28
JetBlue Logo
9:20 am - 4:04 pmLHR-DCA
11h 44m1 stop
JetBlue Logo
6:05 am - 8:45 pmDCA-LHR
9h 40m1 stop
$545JetBlue
Find Deal
Wed, Feb 18 - Wed, Feb 25
JetBlue Logo
7:25 am - 10:59 pmLHR-DCA
20h 34m1 stop
JetBlue Logo
6:00 am - 8:45 pmDCA-LHR
9h 45m1 stop
$546JetBlue
Find Deal
Wed, Dec 10 - Mon, Dec 15
Icelandair Logo
9:20 am - 4:19 pmLHR-DCA
11h 59m1 stop
Icelandair Logo
11:55 am - 6:55 amDCA-LHR
14h 00m1 stop
$551Icelandair
Find Deal
Mon, Feb 2 - Mon, Feb 9
Icelandair Logo
9:20 am - 9:51 pmLHR-DCA
17h 31m1 stop
Icelandair Logo
6:15 am - 8:45 pmDCA-LHR
9h 30m1 stop
$552Icelandair
Find Deal
Mon, Feb 2 - Mon, Feb 9
Scandinavian Airlines Logo
10:20 am - 6:15 pmLHR-IAD
11h 55m1 stop
Scandinavian Airlines Logo
9:30 pm - 4:25 pmIAD-LHR
14h 55m2 stops
$574Scandinavian Airlines
Find Deal
Thu, Mar 12 - Mon, Mar 16
Scandinavian Airlines Logo
10:20 am - 6:50 pmLHR-IAD
13h 30m1 stop
Scandinavian Airlines Logo
8:30 pm - 4:00 pmIAD-LHR
14h 30m1 stop
$575Scandinavian Airlines
Find Deal
Sat, Jan 10 - Sat, Jan 24
Virgin Atlantic Logo
8:40 am - 4:05 pmLHR-IAD
12h 25m1 stop
Virgin Atlantic Logo
10:20 pm - 10:50 amIAD-LHR
7h 30mnonstop
$610Virgin Atlantic
Find Deal
Thu, Dec 11 - Mon, Dec 15
Virgin Atlantic Logo
6:30 am - 4:05 pmLHR-IAD
14h 35m1 stop
Virgin Atlantic Logo
10:57 am - 9:00 amIAD-LHR
17h 03m1 stop
$611Virgin Atlantic
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Thu, Dec 11 - Tue, Dec 30
Delta Logo
8:40 am - 4:05 pmLHR-IAD
12h 25m1 stop
Delta Logo
10:30 pm - 10:50 amIAD-LHR
7h 20mnonstop
$628Delta
Find Deal
Mon, Dec 15 - Fri, Sep 11

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

Our best TAP AIR PORTUGAL deals on London Heathrow Airport to District of Columbia flight tickets
TAP AIR PORTUGAL
Apr 14
LHR6:00 amLondon Heathrow
14h 05m
1 stop
IAD3:05 pmWashington, D.C. Dulles Intl
Apr 28
IAD5:05 pmWashington, D.C. Dulles Intl
20h 45m
1 stop
LHR6:50 pmLondon Heathrow
$543
Find similar
TAP AIR PORTUGAL
Apr 22
LHR11:20 amLondon Heathrow
14h 15m
1 stop
IAD8:35 pmWashington, D.C. Dulles Intl
Apr 28
IAD5:05 pmWashington, D.C. Dulles Intl
12h 15m
1 stop
LHR10:20 amLondon Heathrow
$550
Find similar
TAP AIR PORTUGAL
Apr 22
LHR11:20 amLondon Heathrow
14h 15m
1 stop
IAD8:35 pmWashington, D.C. Dulles Intl
Apr 28
IAD5:05 pmWashington, D.C. Dulles Intl
12h 15m
1 stop
LHR10:20 amLondon Heathrow
$551
Find similar

Scandinavian Airlines flights from London Heathrow Airport to District of Columbia

Our best Scandinavian Airlines deals on London Heathrow Airport to District of Columbia flight tickets
Scandinavian Airlines
Mar 12
LHR10:20 amLondon Heathrow
11h 55m
1 stop
IAD6:15 pmWashington, D.C. Dulles Intl
Mar 16
IAD9:30 pmWashington, D.C. Dulles Intl
14h 55m
2 stops
LHR4:25 pmLondon Heathrow
$574
Find similar
Scandinavian Airlines
Jan 10
LHR10:20 amLondon Heathrow
13h 30m
1 stop
IAD6:50 pmWashington, D.C. Dulles Intl
Jan 24
IAD8:30 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
LHR4:00 pmLondon Heathrow
$575
Find similar
Scandinavian Airlines
Feb 18
LHR6:40 amLondon Heathrow
15h 35m
1 stop
IAD5:15 pmWashington, D.C. Dulles Intl
Feb 28
IAD8:30 pmWashington, D.C. Dulles Intl
17h 00m
1 stop
LHR6:30 pmLondon Heathrow
$577
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport to District of Columbia 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 832,500 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from London Heathrow Airport to District of Columbia that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 4/14

6:00 am-3:05 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Tue 4/28

5:05 pm-6:50 pm

1 stop20h 45m

$543

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 2/18

9:20 am-4:04 pm

1 stop11h 44m

Washington, D.C. Reagan-National

Wed 2/25

6:05 am-8:45 pm

1 stop9h 40m

$545

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 12/10

7:25 am-10:59 pm

1 stop20h 34m

Washington, D.C. Reagan-National

Mon 12/15

6:00 am-8:45 pm

1 stop9h 45m

$546

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 2/2

9:20 am-4:19 pm

1 stop11h 59m

Washington, D.C. Reagan-National

Mon 2/9

11:55 am-6:55 am

1 stop14h 00m

$551

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 2/2

9:20 am-9:51 pm

1 stop17h 31m

Washington, D.C. Reagan-National

Mon 2/9

6:15 am-8:45 pm

1 stop9h 30m

$552

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 3/12

10:20 am-6:15 pm

1 stop11h 55m

Washington, D.C. Dulles Intl

Mon 3/16

9:30 pm-4:25 pm

2 stops14h 55m

$574

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 1/10

10:20 am-6:50 pm

1 stop13h 30m

Washington, D.C. Dulles Intl

Sat 1/24

8:30 pm-4:00 pm

1 stop14h 30m

$575

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 12/11

8:40 am-4:05 pm

1 stop12h 25m

Washington, D.C. Dulles Intl

Mon 12/15

10:20 pm-10:50 am

Nonstop7h 30m

$610

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 12/11

6:30 am-4:05 pm

1 stop14h 35m

Washington, D.C. Dulles Intl

Tue 12/30

10:57 am-9:00 am

1 stop17h 03m

$611

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Mon 12/15

8:40 am-4:05 pm

1 stop12h 25m

Washington, D.C. Dulles Intl

Fri 9/11

10:30 pm-10:50 am

Nonstop7h 20m

$628

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to District of Columbia from

How to get the cheapest flight ticket from London Heathrow Airport to District of Columbia

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 District of Columbia?

In general, September is the cheapest month to fly from London Heathrow Airport to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $648. If you don’t want to visit District of Columbia in September, then you should wait until February to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $699.

What is the cheapest day to depart on your flight to District of Columbia?

The cheapest day to depart on your flight to District of Columbia is on a Thursday when prices can be found for as low as $777. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $936.

What is the cheapest time of day to depart on your flight to District of Columbia?

Flying to District of Columbia from London Heathrow Airport in the evening is the least expensive time of day to depart. momondo users have found prices as low as $749 when looking at flights departing in the evening. Flights to District of Columbia are more costly in the morning, with an average ticket price of $867. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from London Heathrow to Baltimore/Washington for the best London Heathrow - District of Columbia flight prices

How far in advance should I book a flight to District of Columbia?

You are more likely to see cheaper flights to District of Columbia from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $781 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from London Heathrow Airport for as low as $737 on momondo.

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

There are 4 cabin classes available to choose from on London Heathrow to District of Columbia 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 London Heathrow Airport to District of Columbia flights?

No. A direct flight is the cheapest option for a flight between London Heathrow Airport to District of Columbia.

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

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

Best Price Found

$700

Fastest flight time

8h 15m

Direct flights

Every day

Airports in District of Columbia

1 airport
The best one-way flight to District of Columbia from London Heathrow Airport in the past 72 hours is $700. The best round-trip flight deal from London Heathrow Airport to District of Columbia found on momondo in the last 72 hours is $767.
The fastest flight from London Heathrow Airport to District of Columbia takes 8h 15m
Direct flights go from London Heathrow Airport to District of Columbia every day.
There is 1 airport near District of Columbia: Washington, D.C. Dulles Intl (IAD)
Search flight deals

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Heathrow Airport to District of Columbia.

  • What documentation or ID do you need to fly to District of Columbia?

    The required travel and health documents for your District of Columbia 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 District of Columbia. 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 London Heathrow Airport to District of Columbia?

Best airlines flying from London Heathrow Airport to District of Columbia

Compare and see reviews for airlines that fly from London Heathrow Airport to District of Columbia with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $320Free CancellationRating
7.9
8,001 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $390Free CancellationRating
7.4
1,554 reviews
Search Scandinavian Airlines flights
Austrian AirlinesPriceFrom $431Free CancellationRating
7.6
862 reviews
Search Austrian Airlines flights
TAP AIR PORTUGALPriceFrom $473Free CancellationRating
7.1
2,044 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $510Free CancellationRating
7.1
566 reviews
Search Icelandair flights
American AirlinesPriceFrom $562Free CancellationRating
7.2
11,035 reviews
Search American Airlines flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
British AirwaysPriceFrom $594Free CancellationRating
6.7
7,494 reviews
Search British Airways flights
Air CanadaPriceFrom $635Free CancellationRating
7.1
10,392 reviews
Search Air Canada flights
LufthansaPriceFrom $649Free CancellationRating
6.8
7,544 reviews
Search Lufthansa flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to District of Columbia for you.

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

Yes. momondo enables you to select and highlight flights to District of Columbia from London with this policy.

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

momondo provides multiple filters to help you find the best flight to District of Columbia from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for London to District of Columbia flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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