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Cheap flights from London Heathrow Airport to District of Columbia from $574

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 1/15. 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.
Scandinavian Airlines Logo
10:35 am - 5:15 pm
LHR
-
IAD
35h 40m2 stops
Scandinavian Airlines Logo
8:30 pm - 4:00 pm
IAD
-
LHR
14h 30m1 stop
$621Scandinavian Airlines
Tue, Jan 20 - Wed, Feb 4
Scandinavian Airlines Logo
5:30 pm - 6:50 pm
LHR
-
IAD
30h 20m2 stops
Scandinavian Airlines Logo
9:30 pm - 4:00 pm
IAD
-
LHR
14h 30m1 stop
$622Scandinavian Airlines
Fri, Feb 27 - Mon, Mar 9
Finnair Logo
10:20 am - 10:03 pm
LHR
-
DCA
16h 43m2 stops
Finnair Logo
5:45 pm - 5:00 pm
DCA
-
LHR
18h 15m2 stops
$622Finnair
Tue, Jan 20 - Tue, Feb 3
British Airways Logo
7:30 am - 11:12 pm
LHR
-
IAD
20h 42m2 stops
British Airways Logo
5:46 pm - 9:15 am
IAD
-
LHR
10h 29m1 stop
$623British Airways
Tue, Jan 20 - Tue, Feb 3
British Airways Logo
12:10 pm - 3:35 pm
LHR
-
IAD
8h 25mnonstop
British Airways Logo
9:45 pm - 10:00 am
IAD
-
LHR
7h 15mnonstop
$624British Airways
Fri, Jan 30 - Sun, Feb 1
Finnair Logo
10:20 am - 10:33 pm
LHR
-
DCA
17h 13m2 stops
Finnair Logo
5:49 pm - 9:40 pm
DCA
-
LHR
22h 51m1 stop
$624Finnair
Tue, Apr 21 - Tue, Apr 28
Icelandair Logo
12:15 pm - 6:30 pm
LHR
-
IAD
11h 15m1 stop
Icelandair Logo
8:40 pm - 10:50 am
IAD
-
LHR
10h 10m1 stop
$626Icelandair
Sat, Feb 28 - Sun, Mar 8
JetBlue Logo
9:20 am - 5:49 pm
LHR
-
DCA
13h 29m1 stop
JetBlue Logo
2:05 pm - 6:55 am
DCA
-
LHR
11h 50m1 stop
$626JetBlue
Tue, Feb 24 - Sun, Mar 1
American Airlines Logo
12:10 pm - 3:35 pm
LHR
-
IAD
8h 25mnonstop
American Airlines Logo
6:20 pm - 6:30 am
IAD
-
LHR
7h 10mnonstop
$628American Airlines
Thu, Jan 15 - Thu, Jan 22
JetBlue Logo
9:20 am - 4:04 pm
LHR
-
DCA
11h 44m1 stop
JetBlue Logo
4:59 pm - 6:55 am
DCA
-
LHR
9h 56m1 stop
$634JetBlue
Sun, Mar 1 - Tue, Mar 10

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
Jan 20
LHR10:35 amLondon Heathrow
35h 40m
2 stops
IAD5:15 pmWashington, D.C. Dulles Intl
Feb 4
IAD8:30 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
LHR4:00 pmLondon Heathrow
$621
Find similar
Scandinavian Airlines
Feb 27
LHR5:30 pmLondon Heathrow
30h 20m
2 stops
IAD6:50 pmWashington, D.C. Dulles Intl
Mar 9
IAD9:30 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
LHR4:00 pmLondon Heathrow
$622
Find similar
Scandinavian Airlines
Feb 16
LHR7:50 pmLondon Heathrow
50h 25m
2 stops
IAD5:15 pmWashington, D.C. Dulles Intl
Feb 19
IAD8:30 pmWashington, D.C. Dulles Intl
14h 30m
1 stop
LHR4:00 pmLondon Heathrow
$629
Find similar

British Airways flights from London Heathrow Airport to District of Columbia

Our best British Airways deals on London Heathrow Airport to District of Columbia flight tickets
British Airways
Jan 20
LHR7:30 amLondon Heathrow
20h 42m
2 stops
IAD11:12 pmWashington, D.C. Dulles Intl
Feb 3
IAD5:46 pmWashington, D.C. Dulles Intl
10h 29m
1 stop
LHR9:15 amLondon Heathrow
$623
Find similar
British Airways
Jan 30
LHR12:10 pmLondon Heathrow
8h 25m
IAD3:35 pmWashington, D.C. Dulles Intl
Feb 1
IAD9:45 pmWashington, D.C. Dulles Intl
7h 15m
LHR10:00 amLondon Heathrow
$624
Find similar
British Airways
Jan 16
LHR4:25 pmLondon Heathrow
8h 30m
IAD7:55 pmWashington, D.C. Dulles Intl
Jan 29
IAD6:20 pmWashington, D.C. Dulles Intl
7h 10m
LHR6:30 amLondon Heathrow
$625
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 December 18, 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 1/20

10:35 am-5:15 pm

2 stops35h 40m

Washington, D.C. Dulles Intl

Wed 2/4

8:30 pm-4:00 pm

1 stop14h 30m

$621

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 2/27

5:30 pm-6:50 pm

2 stops30h 20m

Washington, D.C. Dulles Intl

Mon 3/9

9:30 pm-4:00 pm

1 stop14h 30m

$622

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 1/20

10:20 am-10:03 pm

2 stops16h 43m

Washington, D.C. Reagan-National

Tue 2/3

5:45 pm-5:00 pm

2 stops18h 15m

$622

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Tue 1/20

7:30 am-11:12 pm

2 stops20h 42m

Washington, D.C. Dulles Intl

Tue 2/3

5:46 pm-9:15 am

1 stop10h 29m

$623

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Fri 1/30

12:10 pm-3:35 pm

Nonstop8h 25m

Washington, D.C. Dulles Intl

Sun 2/1

9:45 pm-10:00 am

Nonstop7h 15m

$624

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 4/21

10:20 am-10:33 pm

2 stops17h 13m

Washington, D.C. Reagan-National

Tue 4/28

5:49 pm-9:40 pm

1 stop22h 51m

$624

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Sat 2/28

12:15 pm-6:30 pm

1 stop11h 15m

Washington, D.C. Dulles Intl

Sun 3/8

8:40 pm-10:50 am

1 stop10h 10m

$626

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 2/24

9:20 am-5:49 pm

1 stop13h 29m

Washington, D.C. Reagan-National

Sun 3/1

2:05 pm-6:55 am

1 stop11h 50m

$626

LondonWashington, D.C.

LHR - IAD

LHRIAD

London Heathrow

Thu 1/15

12:10 pm-3:35 pm

Nonstop8h 25m

Washington, D.C. Dulles Intl

Thu 1/22

6:20 pm-6:30 am

Nonstop7h 10m

$628

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 3/1

9:20 am-4:04 pm

1 stop11h 44m

Washington, D.C. Reagan-National

Tue 3/10

4:59 pm-6:55 am

1 stop9h 56m

$634

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 November to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $663.

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 $752. This is often the case because there is less demand to fly during this day of the week. On the other hand, Monday 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 $911.

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 at noon, with an average ticket price of $852. Departure times at noon 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 Washington, D.C. Dulles Intl 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 $763 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 $681 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?

You could potentially save up to 33% on your flight if you consider stops on a London Heathrow Airport to District of Columbia flight.

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

$706

Fastest flight time

8h 05m

Direct flights

Every day

Airports in District of Columbia

2 airports
The best one-way flight to District of Columbia from London Heathrow Airport in the past 72 hours is $706. The best round-trip flight deal from London Heathrow Airport to District of Columbia found on momondo in the last 72 hours is $680.
The fastest flight from London Heathrow Airport to District of Columbia takes 8h 05m
Direct flights go from London Heathrow Airport to District of Columbia every day.
There are 2 airports in District of Columbia. From London Heathrow Airport there are direct flights to 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
8,005 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $390Free CancellationRating
7.4
1,606 reviews
Search Scandinavian Airlines flights
Austrian AirlinesPriceFrom $431Free CancellationRating
7.6
879 reviews
Search Austrian Airlines flights
TAP AIR PORTUGALPriceFrom $473Free CancellationRating
7.2
2,091 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $510Free CancellationRating
7.0
591 reviews
Search Icelandair flights
American AirlinesPriceFrom $559Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $567Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
LufthansaPriceFrom $590Free CancellationRating
6.8
7,634 reviews
Search Lufthansa flights
British AirwaysPriceFrom $593Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
Air CanadaPriceFrom $635Free CancellationRating
7.1
10,534 reviews
Search Air Canada 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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