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Cheap flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport from £336

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DCA
22 Aug — 29 Aug1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Reagan-National

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Reagan-National
Explore the most affordable flight options available from Heathrow to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 23 July 2026.

Wed 11/1106:50
LHR
-
DCA
2 stops13h 34m
Air Canada
Thu 19/1112:55
DCA
-
LHR
1 stop15h 25m
Air Canada
Deal found 22/7£439
Fri 23/1018:00
LHR
-
DCA
1 stop20h 59m
United Airlines
Sat 24/1018:55
DCA
-
LHR
1 stop31h 35m
United Airlines
Deal found 23/7£449
Sun 22/1106:00
LHR
-
DCA
2 stops20h 59m
Air Canada
Sun 29/1106:00
DCA
-
LHR
1 stop20h 10m
Air Canada
Deal found 22/7£457
Wed 7/1008:40
LHR
-
DCA
2 stops16h 20m
Air Canada
Tue 13/1012:40
DCA
-
LHR
2 stops16h 20m
Air Canada
Deal found 23/7£460
Thu 20/814:05
LHR
-
DCA
1 stop12h 43m
Air Canada
Wed 26/816:20
DCA
-
LHR
1 stop12h 40m
Air Canada
Deal found 21/7£464
Thu 19/1109:00
LHR
-
DCA
2 stops15h 58m
Air Canada
Sun 29/1116:00
DCA
-
LHR
2 stops14h 20m
Air Canada
Deal found 22/7£466
Wed 23/917:25
LHR
-
DCA
1 stop10h 45m
British Airways
Sun 27/917:18
DCA
-
LHR
1 stop9h 32m
British Airways
Deal found 23/7£471
Fri 4/917:25
LHR
-
DCA
1 stop11h 08m
British Airways
Wed 30/916:59
DCA
-
LHR
1 stop10h 01m
British Airways
Deal found 23/7£472

Find flight deals from Heathrow to Reagan-National

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Reagan-National (DCA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 23 July 2026.

Round-trip from

£439

One-way from

£336

Popular in

April

Cheapest in

February

Average price

£588
Air Canada
  • Air Canada
  • 11/11-19/11
  • 3 total stops
  • 28h 59m total
  • London to Washington, D.C.
Search Deals
British Airways
  • British Airways
  • 15/9
  • 1 total stop
  • 12h 05m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£42 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Heathrow to Reagan-National 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, Cheapflights users made 858,174 searches. Data last updated 23 July 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 13/12

11:10-18:18

1 stop12h 08m

Washington, D.C. Reagan-National

Thu 7/1

19:00-10:25

1 stop10h 25m

£490

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 20/8

09:30-12:00

1 stop31h 30m

Washington, D.C. Reagan-National

Thu 27/8

14:59-09:20

1 stop13h 21m

£496

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 6/9

09:30-15:38

1 stop11h 08m

Washington, D.C. Reagan-National

Sun 13/9

09:40-06:30

1 stop15h 50m

£497

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 25/8

14:05-21:48

1 stop12h 43m

Washington, D.C. Reagan-National

Mon 31/8

16:30-07:15

1 stop9h 45m

£498

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 24/9

16:35-23:10

1 stop11h 35m

Washington, D.C. Reagan-National

Sun 27/9

06:00-21:40

1 stop10h 40m

£502

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 6/9

15:00-21:51

1 stop11h 51m

Washington, D.C. Reagan-National

Fri 25/9

06:00-21:40

1 stop10h 40m

£503

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 20/8

15:00-21:59

1 stop11h 59m

Washington, D.C. Reagan-National

Thu 27/8

06:00-21:40

1 stop10h 40m

£503

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 31/10

11:40-19:27

1 stop11h 47m

Washington, D.C. Reagan-National

Sat 7/11

16:44-07:00

1 stop9h 16m

£504

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 1/10

13:25-21:43

1 stop13h 18m

Washington, D.C. Reagan-National

Mon 12/10

15:15-06:45

1 stop10h 30m

£513

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 22/8

09:15-15:58

1 stop11h 43m

Washington, D.C. Reagan-National

Sun 20/9

18:23-09:10

1 stop9h 47m

£514

Flights are sorted by cheapest return flights first.

Deals found on 20/7

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

Best time to book a flight from Heathrow to Reagan-National

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from Heathrow with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport

What is the cheapest month to book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport (average of £436). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in April is currently the most expensive (average of £765). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment.

London Heathrow Airport to Washington, D.C. Reagan-National Airport flights typically cost between £501 and £606 in November.
The cheapest return price found within the last 5 days was £439 on Air Canada (11 Nov–19 Nov).

Reviews of airlines servicing Reagan-National

Get insights into the airlines that provide service to Reagan-National. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Reagan-National. Reviews last updated 23 July 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport, such as Virgin Atlantic,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
Virgin Atlantic
7.5
Good
693 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
United Airlines
7.4
Good
10,024 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
American Airlines
7.1
Good
11,832 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
JetBlue
7.1
Good
3,020 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.
British Airways
6.7
Okay
8,127 reviews
Virgin Atlantic
7.5
Good
693 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.5

Overall

7.5

Food

6.9

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Reagan-National. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

    There are many flights that can get you from London Heathrow Airport to Washington, D.C. Reagan-National Airport in 11h 35m. Fly via United Airlines or British Airways to get the fastest option. The distance between London Heathrow Airport and Washington, D.C. Reagan-National Airport is about 3652 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport round-trip?

    Flying on British Airways is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at £417. Additional return tickets that might be worth considering are offered by United Airlines and Virgin Atlantic, with the lowest prices starting at £421 and £437, respectively. Users have found that British Airways is 25% cheaper than the other options available to this destination.

  • Can I find deals for flights from Heathrow to Reagan-National that include hotel bookings?

    Yes. In addition to deals on Heathrow to Reagan-National flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Reagan-National?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Reagan-National.

  • Can I find deals for business class flights from Heathrow to Reagan-National?

    Yes. Cheapflights offers flight deals from Heathrow to Reagan-National by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport (average of £436). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in April is currently the most expensive (average of £765). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Washington, D.C. Reagan-National Airport?

Book flights to Washington, D.C. Reagan-National Airport if you plan to visit one of these locations
Silver Spring
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Alexandria

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from Heathrow to Reagan-National

Discover the top 5 airlines that operate flights from Heathrow to Reagan-National. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 23 July 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£417Average£494FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£421Average£541FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Virgin AtlanticCheapest£437Average£531FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£438Average£548FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£546Average£585FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Heathrow to Reagan-National?

Cheapflights makes it easy to find Heathrow to Reagan-National flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Reagan-National?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Reagan-National from Heathrow.

Can Cheapflights find flights from Heathrow to Reagan-National with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to Reagan-National flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Heathrow to Reagan-National become cheaper?

Of course! You can now track prices for flights from Heathrow to Reagan-National and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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