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Cheap flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport from £426

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 23/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DCA
2 Feb — 9 Feb1
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 3 January 2026.

Fri 20/313:25LHR - DCA
1 stop12h 33mMultiple Airlines
Sun 29/311:05DCA - LHR
1 stop17h 55mMultiple Airlines
Deal found 3/1£426
Sun 15/212:00LHR - DCA
1 stop29h 19mUnited Airlines
Sun 22/211:05DCA - LHR
1 stop15h 05mUnited Airlines
Deal found 2/1£427
Sat 17/113:25LHR - DCA
1 stop13h 33mUnited Airlines
Thu 12/307:00DCA - LHR
1 stop10h 20mUnited Airlines
Deal found 2/1£428
Mon 19/115:35LHR - DCA
1 stop11h 28mBritish Airways
Thu 29/116:43DCA - LHR
1 stop10h 07mBritish Airways
Deal found 2/1£428
Fri 13/207:25LHR - DCA
1 stop13h 07mUnited Airlines
Mon 23/215:10DCA - LHR
1 stop10h 10mUnited Airlines
Deal found 2/1£429
Fri 13/206:50LHR - DCA
2 stops13h 41mAir Canada
Sun 22/216:15DCA - LHR
1 stop9h 55mAir Canada
Deal found 2/1£430
Sun 15/211:10LHR - DCA
1 stop11h 55mUnited Airlines
Sat 21/218:00DCA - LHR
1 stop12h 15mUnited Airlines
Deal found 2/1£431
Tue 17/209:20LHR - DCA
1 stop13h 14mJetBlue
Tue 24/210:00DCA - LHR
1 stop15h 55mJetBlue
Deal found 2/1£432
Mon 16/209:00LHR - DCA
2 stops15h 59mAir Canada
Mon 23/216:15DCA - LHR
1 stop9h 55mAir Canada
Deal found 2/1£433
Tue 3/213:25LHR - DCA
1 stop13h 31mAir Canada
Tue 17/211:05DCA - LHR
1 stop15h 05mAir Canada
Deal found 1/1£434
Mon 6/711:30LHR - DCA
2 stops16h 40mBritish Airways
Mon 20/717:00DCA - LHR
1 stop10h 00mBritish Airways
Deal found 1/1£434
Thu 9/408:40LHR - DCA
2 stops18h 13mAir Canada
Thu 30/412:55DCA - LHR
2 stops51h 05mAir Canada
Deal found 2/1£435

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 3 January 2026.

Round-trip from

£426

One-way from

£426

Popular in

July

Cheapest in

November

Average price

£543
Air Canada
  • Air Canada
  • 22/1-29/1
  • 4 total stops
  • 30h 20m total
  • London to Washington, D.C.
Search Deals
JetBlue
  • JetBlue
  • 23/5
  • 1 total stop
  • 29h 26m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£8 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 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 3 January 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

Heathrow

Fly to

Reagan-National

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 20/3

13:25-21:58

1 stop12h 33m

Washington, D.C. Reagan-National

Sun 29/3

11:05-10:00

1 stop17h 55m

£426

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 15/2

12:00-12:19

1 stop29h 19m

Washington, D.C. Reagan-National

Sun 22/2

11:05-07:10

1 stop15h 05m

£427

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 17/1

13:25-21:58

1 stop13h 33m

Washington, D.C. Reagan-National

Thu 12/3

07:00-21:20

1 stop10h 20m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 17/1

13:25-21:58

1 stop13h 33m

Washington, D.C. Reagan-National

Wed 11/3

15:30-07:55

1 stop12h 25m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 18/1

13:25-21:58

1 stop13h 33m

Washington, D.C. Reagan-National

Tue 10/3

07:00-21:20

1 stop10h 20m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 18/1

13:25-21:58

1 stop13h 33m

Washington, D.C. Reagan-National

Thu 12/3

06:00-21:20

1 stop11h 20m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 2/2

13:25-21:58

1 stop13h 33m

Washington, D.C. Reagan-National

Mon 9/2

06:00-20:35

1 stop9h 35m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 18/1

13:25-21:58

1 stop13h 33m

Washington, D.C. Reagan-National

Wed 11/3

15:30-07:55

1 stop12h 25m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 12/3

09:35-16:37

1 stop11h 02m

Washington, D.C. Reagan-National

Mon 16/3

06:20-20:00

1 stop9h 40m

£428

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 21/2

10:15-15:59

1 stop10h 44m

Washington, D.C. Reagan-National

Sun 15/3

16:45-06:30

1 stop9h 45m

£428

Flights are sorted by cheapest return flights first.

Deals found on 1/1

Showing 1-10 of 24 results
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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
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

How far ahead should I book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

Use this chart to determine the optimal time to book a return flight from Heathrow to Reagan-National. Price data was last updated on 26 December 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport, you should look to book at least 81 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport (average of £411). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £508). 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.

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 3 January 2026.
Read through reviews of airlines operating flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport, such as Finnair, Virgin Atlantic, andJetBlue. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,345 reviews
Check prices

Overall

7.6

Entertainment

6.9

Comfort

7.4

Crew

8.2

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,345 reviews
Finnair
7.6
Good
1,345 reviews
Check prices

Overall

7.6

Entertainment

6.9

Comfort

7.4

Crew

8.2

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Virgin Atlantic
7.5
Good
678 reviews
Finnair
7.6
Good
1,345 reviews
Check prices

Overall

7.6

Entertainment

6.9

Comfort

7.4

Crew

8.2

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
JetBlue
7.2
Good
2,901 reviews
Finnair
7.6
Good
1,345 reviews
Check prices

Overall

7.6

Entertainment

6.9

Comfort

7.4

Crew

8.2

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Air Canada
7.1
Good
10,589 reviews
Finnair
7.6
Good
1,345 reviews
Check prices

Overall

7.6

Entertainment

6.9

Comfort

7.4

Crew

8.2

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
British Airways
6.7
Okay
7,641 reviews
Finnair
7.6
Good
1,345 reviews
Check prices

Overall

7.6

Entertainment

6.9

Comfort

7.4

Crew

8.2

Boarding

7.6

Food

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,Sept 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

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 29h 19m. Fly via United Airlines to get the fastest option. The distance between London Heathrow Airport and Washington, D.C. Reagan-National Airport is about 3652 mi.

  • 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 £418. Additional return tickets that might be worth considering are offered by Lufthansa and Virgin Atlantic, with the lowest prices starting at £419 and £434, respectively. Users have found that United Airlines is 27% 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Washington, D.C. Reagan-National Airport (average of £411). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £508). 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
Hanover
Oxon Hill
Woodbridge
Arlington
Alexandria
College Park

Browse thousands of different options on Cheapflights for your next trip

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Top 8 airlines flying from Heathrow to Reagan-National

Discover the top 8 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 3 January 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest£418Average£633FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£419Average£714FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£434Average£575FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£435Average£630FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£475Average£615FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air CanadaCheapest£479Average£634FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£486Average£619FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£524Average£586FlexibilityNo 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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