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Cheap flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport from £345

LHR — DCA
18 Sep — 25 Sep1
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

Tue 1/914:05 -
1 stop12h 43m
Sat 31/1012:55 -
1 stop13h 35m
Deal found 14/8£428
Fri 4/1209:00 -
2 stops15h 58m
Mon 7/1212:55 -
1 stop12h 35m
Deal found 14/8£430
Thu 3/914:05 -
1 stop12h 43m
Sun 6/916:20 -
1 stop12h 40m
Deal found 14/8£431
Sun 13/914:05 -
1 stop25h 15m
Sun 20/916:20 -
1 stop12h 40m
Deal found 16/8£431
Sun 22/1109:00 -
2 stops15h 58m
Sun 29/1116:00 -
1 stop10h 10m
Deal found 14/8£433
Thu 5/1118:00 -
1 stop19h 58m
Wed 18/1116:00 -
1 stop10h 10m
Deal found 15/8£434
Thu 19/1106:50 -
2 stops20h 09m
Sun 17/111:05 -
1 stop15h 05m
Deal found 17/8£434
Fri 2/1015:50 -
1 stop12h 09m
Sun 4/1017:05 -
1 stop14h 00m
Deal found 15/8£435
Tue 1/906:50 -
2 stops15h 08m
Sat 31/1013:01 -
1 stop12h 54m
Deal found 14/8£436
Tue 29/906:00 -
2 stops17h 15m
Tue 6/1009:40 -
1 stop15h 50m
Deal found 15/8£437

Find flight deals from Heathrow to Reagan-National

Round-trip from

£428

One-way from

£345

Popular in

April

Cheapest in

February

Average price

£523
Air Canada
  • Air Canada
  • 1/9-31/10
  • 2 total stops
  • 26h 18m total
  • London to Washington, D.C.
Search Deals
British Airways
  • British Airways
  • 4/12
  • 1 total stop
  • 12h 30m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 9% potential increase in price (£41 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 August 2026
Search Deals

Cheapflights Fare Finder

 
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 London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Thu 17/9

16:35-23:10

1 stop11h 35m

Washington, D.C. Reagan-National

Sun 20/9

18:23-09:50

1 stop10h 27m

£457

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Thu 1/10

16:05-23:35

1 stop12h 30m

Washington, D.C. Reagan-National

Mon 12/10

17:05-08:50

1 stop10h 45m

£459

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Mon 21/9

16:05-23:35

1 stop12h 30m

Washington, D.C. Reagan-National

Mon 26/4

20:30-13:15

1 stop11h 45m

£459

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Fri 2/10

15:50-22:59

1 stop12h 09m

Washington, D.C. Reagan-National

Mon 12/10

17:05-08:50

1 stop10h 45m

£459
Fastest return journey

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Wed 7/10

12:30-19:05

1 stop11h 35m

Washington, D.C. Reagan-National

Tue 13/10

17:10-07:50

1 stop9h 40m

£459

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Wed 9/9

09:15-16:07

1 stop11h 52m

Washington, D.C. Reagan-National

Sat 3/10

18:23-09:50

1 stop10h 27m

£460

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Sun 6/9

09:30-15:38

1 stop11h 08m

Washington, D.C. Reagan-National

Fri 25/9

06:00-21:25

1 stop10h 25m

£460

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Mon 5/10

07:45-14:24

1 stop11h 39m

Washington, D.C. Reagan-National

Tue 6/10

11:45-10:00

2 stops17h 15m

£465

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Thu 1/10

15:50-22:59

1 stop12h 09m

Washington, D.C. Reagan-National

Wed 14/10

15:15-06:45

1 stop10h 30m

£473

LondonWashington, D.C.

LHR London Heathrow - DCA Washington, D.C. Reagan-National

LHRDCA

London Heathrow

Fri 25/9

10:20-23:10

2 stops17h 50m

Washington, D.C. Reagan-National

Thu 1/10

18:23-07:20

1 stop31h 57m

£480

Flights are sorted by cheapest return flights first.

Deals found on 16/8

Showing 1-10 of 23 resultsSorted by cheapest first
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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

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 £431). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in April is currently the most expensive (average of £756). 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 £491 and £560 in September.
The cheapest return price found within the last 5 days was £428 on Air Canada (1 Sept–31 Oct).

Reviews of airlines servicing Reagan-National

Read through reviews of airlines operating flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport, such as United Airlines,Virgin Atlantic, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,104 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
10,104 reviews
United Airlines
7.4
Good
10,104 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
Virgin Atlantic
7.4
Good
695 reviews
United Airlines
7.4
Good
10,104 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,961 reviews
United Airlines
7.4
Good
10,104 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
JetBlue
7.1
Good
3,036 reviews
United Airlines
7.4
Good
10,104 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
8,181 reviews
United Airlines
7.4
Good
10,104 reviews
Check prices

Boarding

7.7

Overall

7.4

Crew

8.1

Comfort

7.3

Food

6.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

  • 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 British Airways, Delta, or KLM 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 United Airlines is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at £416. Additional return tickets that might be worth considering are offered by British Airways and Virgin Atlantic, with the lowest prices starting at £424 and £432, respectively. Users have found that United Airlines is 24% 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 £431). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in April is currently the most expensive (average of £756). 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
Alexandria
Gaithersburg
Oxon Hill
Hanover
Woodbridge
Glen Burnie
Springfield

Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Heathrow to Reagan-National

AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£416Average£534FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
British AirwaysCheapest£424Average£489FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£432Average£525FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£433Average£542FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
American AirlinesCheapest£540Average£578FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

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.

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