DCA - LHR

£240 Find Cheap Flights from Reagan Washington National Airport to London Heathrow Airport – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£510
Typical prices: £532-£721
Multiple Airlines
Sun 9/12Wed 12/12
DCA - LHR • 3 stops
Cheapest one-way flight
£240
Typical prices: £255-£356
JetBlue
Sun 25/3
DCA - LHR • 1 stop
Direct flights
Not available
There are currently no direct flights between Washington, D.C. Reagan-National Airport and London Heathrow Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
17 weeks
in advance
Our data shows that travellers who book at least 17 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
When to travel
January
Cheapest • 19% price drop
April
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Ottawa (YOW)
Cheapest • Avg £480 (return)
Newark (EWR)
Shortest trip • 11h 04m (one-way)
Insights
Insights
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We hope you enjoy your trip to London Heathrow Airport!
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Flight Deals

Cheap Flights from Reagan-National to Heathrow (DCA-LHR)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Reagan-National to Heathrow

Wed, 9 Dec - Sat, 12 Dec
Multiple Airlines Logo
11:05 - 20:05DCA  Washington, D.C. Reagan-National-LHR London Heathrow
28h 00m3 stops Montreal Pierre Elliott Trudeau Intl Madrid Barajas Barcelona-El Prat
Multiple Airlines Logo
19:55 - 21:59LHR  London Heathrow-DCA Washington, D.C. Reagan-National
31h 04m3 stops Lisbon Humberto Delgado Madrid Barajas Montreal Pierre Elliott Trudeau Intl
£510Multiple Airlines
Wed, 2 Dec - Sat, 5 Dec
Multiple Airlines Logo
11:05 - 17:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
25h 25m3 stops Montreal Pierre Elliott Trudeau Intl Madrid Barajas Lisbon Humberto Delgado
Multiple Airlines Logo
19:55 - 21:59LHR  London Heathrow-DCA Washington, D.C. Reagan-National
31h 04m3 stops Lisbon Humberto Delgado Madrid Barajas Montreal Pierre Elliott Trudeau Intl
£521Multiple Airlines
Fri, 12 Feb - Mon, 15 Feb
Multiple Airlines Logo
20:45 - 21:00DCA  Washington, D.C. Reagan-National-LHR London Heathrow
43h 15m2 stops Toronto Pearson Intl Ottawa
Multiple Airlines Logo
18:00 - 15:24LHR  London Heathrow-DCA Washington, D.C. Reagan-National
26h 24m2 stops Brussels Bruxelles-National Montreal Pierre Elliott Trudeau Intl
£547Multiple Airlines
Fri, 27 Nov - Mon, 7 Dec
Multiple Airlines Logo
06:59 - 19:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
31h 31m2 stops Toronto Pearson Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
20:35 - 22:38LHR  London Heathrow-DCA Washington, D.C. Reagan-National
31h 03m2 stops Reykjavik Keflavik Intl Toronto Pearson Intl
£555Multiple Airlines
Tue, 12 Jan - Wed, 20 Jan
Multiple Airlines Logo
09:40 - 19:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
28h 50m2 stops Toronto Pearson Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 22:38LHR  London Heathrow-DCA Washington, D.C. Reagan-National
15h 23m2 stops Reykjavik Keflavik Intl Toronto Pearson Intl
£563Multiple Airlines
Mon, 1 Feb - Thu, 4 Feb
Air Canada Logo
20:45 - 08:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
30h 45m1 stop Toronto Pearson Intl
Air Canada Logo
06:50 - 15:24LHR  London Heathrow-DCA Washington, D.C. Reagan-National
13h 34m2 stops Brussels Bruxelles-National Montreal Pierre Elliott Trudeau Intl
£564Air Canada
Wed, 10 Feb - Thu, 11 Feb
United Airlines Logo
07:00 - 21:20DCA  Washington, D.C. Reagan-National-LHR London Heathrow
9h 20m1 stop Newark
United Airlines Logo
11:05 - 14:23LHR  London Heathrow-DCA Washington, D.C. Reagan-National
56h 18m2 stops Brussels Bruxelles-National Newark
£567United Airlines
Sat, 16 Jan - Wed, 20 Jan
Multiple Airlines Logo
09:40 - 19:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
28h 50m2 stops Toronto Pearson Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
12:15 - 22:38LHR  London Heathrow-DCA Washington, D.C. Reagan-National
15h 23m2 stops Reykjavik Keflavik Intl Toronto Pearson Intl
£567Multiple Airlines
Wed, 18 Nov - Mon, 23 Nov
Multiple Airlines Logo
06:00 - 19:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
32h 30m3 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
20:35 - 22:38LHR  London Heathrow-DCA Washington, D.C. Reagan-National
31h 03m2 stops Reykjavik Keflavik Intl Toronto Pearson Intl
£568Multiple Airlines
Sun, 15 Nov - Sun, 22 Nov
Multiple Airlines Logo
06:59 - 19:30DCA  Washington, D.C. Reagan-National-LHR London Heathrow
31h 31m2 stops Toronto Pearson Intl Reykjavik Keflavik Intl
Multiple Airlines Logo
20:35 - 22:38LHR  London Heathrow-DCA Washington, D.C. Reagan-National
31h 03m2 stops Reykjavik Keflavik Intl Toronto Pearson Intl
£572Multiple Airlines
Booking Insights

Price, demand, and travel trends for Washington, D.C. Reagan-National Airport to London Heathrow Airport flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport. It's 12% cheaper than the average day, while Thursday is the most expensive, with prices 7% higher.

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

•January is the cheapest month to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport at £485 return.
•June (£883) and May (£832) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 82% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport the cheapest?

Flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport are cheapest 17 weeks before departure. Booking in this window typically costs about 22% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Washington, D.C. Reagan-National Airport to London Heathrow Airport flights

Low season

September

Cheapest flight

£240
Beat the crowds with an average 64% drop in traveller numbers.
The most popular month to fly with an average 134% increase in traveller numbers.
One-way flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport

When to book flights from Reagan-National to Heathrow

Are your dates flexible? Find out the best times to travel from Reagan-National to Heathrow based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Washington, D.C. Reagan-National Airport to London Heathrow Airport flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    Three cabin classes are available on flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport:

    • Economy class
    • Premium Economy Class
    • Business Class

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

    A direct flight from Washington, D.C. Reagan-National Airport to London Heathrow Airport takes 00m, covering 3,652 miles.

  • Do I need a passport to fly from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Washington, D.C. Reagan-National Airport to London Heathrow Airport flight?

    Return flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport range from £532 to £721, with an average of £598 over the past 12 months. Anything below £532 counts as a good deal.

  • How expensive are last-minute Washington, D.C. Reagan-National Airport to London Heathrow Airport flights?

    Last-minute fares on this route (booked within two weeks of departure) run 5% above the £598 route average. Book 17 weeks before departure for the lowest fares.

  • How are flight prices from Washington, D.C. Reagan-National Airport to London Heathrow Airport looking right now?

    One-way fares from Washington, D.C. Reagan-National Airport to London Heathrow Airport are currently lower than usual. Average one-way flight prices are about £242, which is 20% below the typical average for this route.

  • Which airports can I use when flying from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    Flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport usually depart from Washington, D.C. Reagan-National (DCA) and arrive at London Heathrow (LHR).

  • Which airports do connecting flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport pass through?

    One-stop flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport most commonly connect through:

    • Boston Logan Intl (BOS) – 54% of one-stop connections
    • New York John F Kennedy Intl (JFK) – 26% of one-stop connections
    • Toronto Pearson Intl (YYZ) – 10% of one-stop connections
    • Montreal Pierre Elliott Trudeau Intl (YUL) – 4% of one-stop connections

  • Can I save money by using flexible dates for flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    Yes. Flexible dates can save you up to 19% on flights from Washington, D.C. Reagan-National Airport to London Heathrow Airport. Sunday is the cheapest departure day at £528 return on average, while Thursday is the most expensive at £644, a difference of £116.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • How much time can I save by choosing a different stopover airport from Washington, D.C. Reagan-National Airport to London Heathrow Airport?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time of 11h 04m, compared to 11h 56m via Boston Logan Intl (BOS) and 12h 15m via Toronto Pearson Intl (YYZ).

  • What is the time difference between Washington, D.C. Reagan-National Airport and London Heathrow Airport?

    London Heathrow Airport is 4 hours ahead of Washington, D.C. Reagan-National Airport (British Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in London Heathrow Airport?

    Some of the most popular sights in London Heathrow Airport are Hyde Park, Tower Bridge, and Royal Albert Hall. These are among the most viewed places in London Heathrow Airport on KAYAK.

Your guide to booking Washington, D.C. Reagan-National Airport to London Heathrow Airport flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Thursday. On this route, Sunday flights average £528, about £116 less than Thursday fares (18% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 17 weeks before you fly. On this route, that window historically saves about 22% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Washington, D.C. Reagan-National Airport to London Heathrow Airport trip for January. Fares historically average £485 return in that month – typically £398 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to London Heathrow Airport.

    • Hilton London Heathrow Airport

More options for your flight from Reagan-National to Heathrow

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