Find flights
When to book
Airlines
FAQs

Cheap flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport from £343

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 21/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — DCA
2 Apr — 9 Apr1
1 adult

Cheapflights Tip: The best prices from London Heathrow to Washington, D.C. Reagan-National are usually found in March or January, booked 41 days in advance, depart on a Monday or Wednesday and return on a Monday

Cheap 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 28 March 2025.

Round-trip from

£442

One-way from

£343

Popular in

July

Cheapest in

March

Average price

£533
Icelandair
  • Icelandair
  • 22/4-28/4
  • 2 total stops
  • 50h 20m total
  • London to Washington, D.C.
Search Deals
21/5
  • 21/5
  • 2 total stops
  • 15h 23m total
  • London to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£124 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Heathrow to Reagan-National

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 28 March 2025.

Tue 22/408:25LHR - DCA
1 stop28h 50mIcelandair
Mon 28/407:00DCA - LHR
1 stop21h 30mIcelandair
Deal found 27/3£442
Mon 8/908:15LHR - DCA
1 stop15h 29mJetBlue
Thu 18/917:15DCA - LHR
1 stop11h 15mJetBlue
Deal found 27/3£445
Sat 24/514:05LHR - DCA
1 stop25h 14mLufthansa
Sat 31/519:30DCA - LHR
2 stops30h 05mLufthansa
Deal found 27/3£484
Thu 24/410:30LHR - DCA
2 stops15h 38mMultiple Airlines
Wed 30/411:00DCA - LHR
1 stop14h 30mMultiple Airlines
Deal found 27/3£524
Thu 8/508:30LHR - DCA
1 stop16h 13mAir Canada
Sat 17/518:50DCA - LHR
1 stop12h 00mAir Canada
Deal found 27/3£525
Mon 21/411:45LHR - DCA
1 stop12h 14mKLM
Thu 1/515:25DCA - LHR
1 stop10h 20mKLM
Deal found 27/3£537
Fri 18/409:15LHR - DCA
1 stop12h 04mBritish Airways
Thu 1/506:35DCA - LHR
1 stop10h 05mBritish Airways
Deal found 27/3£546
Sun 11/509:30LHR - DCA
1 stop11h 19mUnited Airlines
Sun 18/515:20DCA - LHR
1 stop10h 25mUnited Airlines
Deal found 26/3£551
Thu 24/412:45LHR - DCA
1 stop12h 06mVirgin Atlantic
Wed 30/411:00DCA - LHR
1 stop14h 25mVirgin Atlantic
Deal found 27/3£557
Fri 11/409:15LHR - DCA
1 stop11h 55mAmerican Airlines
Sun 20/406:35DCA - LHR
1 stop10h 05mAmerican Airlines
Deal found 27/3£565
Fri 5/916:05LHR - DCA
1 stop12h 25mAir France
Sat 20/917:00DCA - LHR
1 stop10h 50mAir France
Deal found 27/3£566
Mon 5/509:30LHR - DCA
2 stops18h 06mFinnair
Thu 15/517:49DCA - LHR
1 stop22h 51mFinnair
Deal found 27/3£578

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 28 March 2025.
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

Tue 22/4

08:25-08:15

1 stop28h 50m

Washington, D.C. Reagan-National

Mon 28/4

07:00-09:30

1 stop21h 30m

£442

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 8/9

08:15-18:44

1 stop15h 29m

Washington, D.C. Reagan-National

Thu 18/9

17:15-09:30

1 stop11h 15m

£445

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 24/5

14:05-10:19

1 stop25h 14m

Washington, D.C. Reagan-National

Sat 31/5

19:30-06:35

2 stops30h 05m

£484

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 23/4

15:50-22:28

1 stop11h 38m

Washington, D.C. Reagan-National

Wed 30/4

11:00-08:35

3 stops16h 35m

£513

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 24/4

10:30-21:08

2 stops15h 38m

Washington, D.C. Reagan-National

Wed 30/4

11:00-06:30

1 stop14h 30m

£524

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 21/4

11:45-18:59

1 stop12h 14m

Washington, D.C. Reagan-National

Thu 1/5

15:25-06:45

1 stop10h 20m

£537

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 18/4

09:15-16:19

1 stop12h 04m

Washington, D.C. Reagan-National

Thu 1/5

06:35-21:40

1 stop10h 05m

£546

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 11/5

09:30-15:49

1 stop11h 19m

Washington, D.C. Reagan-National

Sun 18/5

15:20-06:45

1 stop10h 25m

£551

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 24/4

09:40-15:51

1 stop11h 11m

Washington, D.C. Reagan-National

Wed 30/4

16:31-07:15

1 stop9h 44m

£557

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 28/4

11:45-18:59

1 stop12h 14m

Washington, D.C. Reagan-National

Sun 11/5

16:39-08:05

1 stop10h 26m

£558

Flights are sorted by cheapest return flights first.

Deals found on 27/3

Showing 1-10 of 26 results
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

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 21 March 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 41 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, 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 £625). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £934). 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.

What is the cheapest time of day to fly from LHR to DCA?

Find hourly flight availability from Heathrow to Reagan-National. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 28 March 2025.

When flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 11% versus a flight in the afternoon.

Rainfall in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 66.0 mm.

Temperature in Reagan-National by month

Plan your trip to Reagan-National by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Reagan-National Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

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 28 March 2025.
See what other customers who have flown with Delta, KLM and Finnair from London to Washington, D.C. have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,897 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,897 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,321 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,424 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very Good
7,897 reviews
Check prices

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    Flying on Icelandair is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at £442. Additional return tickets that might be worth considering are offered by JetBlue and Lufthansa, with the lowest prices starting at £445 and £484, respectively. Users have found that Icelandair is 34% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from London Heathrow Airport to Washington, D.C. Reagan-National Airport one-way?

    One-way options have recently been found by users for as low as £484 on Icelandair. Other airlines that offer cheap prices include JetBlue from £512 and WestJet from £514 one-way.

  • 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 £625). Flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport in July is currently the most expensive (average of £934). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Silver Spring
Arlington
Woodbridge
College Park
Laurel
Tysons

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Heathrow to Reagan-National

Discover the top 10 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 28 March 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest£287Average£587FlexibilityNo cancel feeOn-timeN/A
Search PLAY flights
IcelandairCheapest£377Average£556FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
JetBlueCheapest£396Average£563FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
LufthansaCheapest£498Average£663FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Virgin AtlanticCheapest£505Average£731FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
FinnairCheapest£505Average£606FlexibilityNo cancel feeOn-time76%
Search Finnair flights
British AirwaysCheapest£506Average£668FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£510Average£680FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Air CanadaCheapest£529Average£742FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£577Average£761FlexibilityNo 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.

100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.