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

Air Canada, United Airlines, and Icelandair can get you from London to Washington, D.C. Reagan-National Airport in just under 13h 45m. Your travel time can differ by up to 2h. London and Washington, D.C. Reagan-National Airport are separated by a distance of 3670 mi. This flight may include one or multiple stops.

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

Travelers seeking maximum savings on their London to Washington, D.C. Reagan-National Airport flight should consider departing on Tuesday mornings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Washington, D.C. Reagan-National Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Reagan-National Airport when rainfall is around 2.6 in.

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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

What are the most popular routes from London to Washington, D.C. Reagan-National Airport?

The most popular flight routes from London to Washington, D.C. Reagan-National Airport are London Heathrow - Washington, D.C. Reagan-National, London Gatwick - Washington, D.C. Reagan-National and London City - Washington, D.C. Reagan-National.

What is the cheapest day to fly round-trip from London to Washington, D.C. Reagan-National Airport?

Monday is generally a great day to depart. Flying on this day could help you save up to 131%.

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

Flights from London to Washington, D.C. Reagan-National Airport lean towards being more expensive in July. Prices are generally better when you fly from London to Washington, D.C. Reagan-National Airport in February, with the cheapest ticket starting at $305.

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

Unlike at noon, when flights are generally more expensive, you can save up to 56% on flights from London to Washington, D.C. Reagan-National Airport by exploring options for tickets in the afternoon.

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

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

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

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

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

Yes. Cheapflights offers flight deals from London 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.

$506+ Cheap Flights from London to Washington, D.C. Reagan-National Airport

Q: How much does it cost to fly round-trip from London to Washington, D.C. Reagan-National Airport?

Airfare is below average for this route at the moment. London to Washington, D.C. Reagan-National Airport flights typically cost between $625 and $884 in October. The cheapest round-trip price found within the last 3 days was $535 on Virgin Atlantic (Oct 27-Nov 7).

Q: How far in advance should I book a flight from London to Washington, D.C. Reagan-National Airport?

To save up to 26% on this flight, we recommend booking at least 60 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from London to Washington, D.C. Reagan-National Airport from $714 1-2 weeks out and tickets from $1,055 for flights departing within the next 72 hours.

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Cheapflights Tip: The best prices from London to Washington, D.C. Reagan-National are usually found in February or January, booked 24 days in advance, depart on a Tuesday or Friday and return on a Tuesday

Cheap flight deals from London to Reagan-National

Round-trip from	$535 (TravelUp)
One-way from	$506 (Kiwi.com)
Popular in	August
Cheapest in	February
Average price	$711

From London (LON) to Washington, D.C. Reagan-National

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One-way flight from London (LON) to Washington, D.C. Reagan-National

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Highest demand for flights based on searches. 7% potential increase in price ($62 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($16 potential savings vs. average RT price).

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Average for round-trip flights in September 2025

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Find flight deals from London to Reagan-National

Cheapest flights from London to Reagan-National
Explore the most affordable flight options available from London to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Tue 12/28:40 amLHR - DCA

2 stops19h 27mVirgin Atlantic

Mon 12/154:05 pmDCA - LHR

1 stop33h 20mVirgin Atlantic

Deal found 9/14

$535

Wed 11/511:10 amLHR - DCA

2 stops15h 46mMultiple Airlines

Mon 11/104:10 pmDCA - LHR

1 stop10h 00mMultiple Airlines

Deal found 9/14

$536

Fri 10/33:05 pmLGW - DCA

1 stop13h 02mAmerican Airlines

Sun 10/53:35 pmDCA - LGW

1 stop11h 15mAmerican Airlines

Deal found 9/14

$537

Wed 10/296:50 amLHR - DCA

2 stops13h 06mAir Canada

Wed 11/512:55 pmDCA - LHR

2 stops13h 15mAir Canada

Deal found 9/14

$538

Fri 11/79:00 amLHR - DCA

2 stops15h 45mAir Canada

Mon 11/1011:05 amDCA - LHR

1 stop15h 05mAir Canada

Deal found 9/13

$539

Tue 10/286:50 amLHR - DCA

2 stops13h 06mAir Canada

Tue 11/44:10 pmDCA - LHR

1 stop10h 00mAir Canada

Deal found 9/13

$540

Wed 10/86:50 amLHR - DCA

2 stops14h 01mAir Canada

Mon 10/134:35 pmDCA - LHR

1 stop12h 00mAir Canada

Deal found 9/14

$541

Thu 9/2512:10 pmLGW - DCA

1 stop24h 59mIcelandair

Thu 10/21:20 pmDCA - LGW

1 stop15h 15mIcelandair

Deal found 9/14

$544

Sat 9/276:50 amLHR - DCA

2 stops14h 01mMultiple Airlines

Sat 10/44:35 pmDCA - LHR

1 stop12h 00mMultiple Airlines

Deal found 9/14

$544

Fri 10/39:30 amLHR - DCA

1 stop17h 21mMultiple Airlines

Sun 10/56:00 amDCA - LHR

1 stop19h 30mMultiple Airlines

Deal found 9/14

$545

Fri 10/316:50 amLHR - DCA

2 stops13h 06mAir Canada

Mon 11/311:05 amDCA - LHR

2 stops14h 25mAir Canada

Deal found 9/14

$547

Fri 9/1912:10 pmLGW - DCA

1 stop29h 49mJetBlue

Wed 9/243:15 pmDCA - LGW

1 stop13h 20mJetBlue

Deal found 9/14

$549

Best flights from London to Reagan-National
Discover carefully curated flight deals from London to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2025.

Thu 11/69:00 amLHR - DCA

2 stops15h 45mAir Canada

Mon 11/1012:55 pmDCA - LHR

2 stops13h 15mAir Canada

Deal found 9/13

$539

Sun 11/231:25 pmLHR - DCA

1 stop13h 31mMultiple Airlines

Thu 12/46:00 amDCA - LHR

1 stop20h 10mMultiple Airlines

Deal found 9/12

$544

Tue 12/29:30 amLHR - DCA

2 stops15h 05mUnited Airlines

Mon 12/153:00 pmDCA - LHR

1 stop10h 20mUnited Airlines

Deal found 9/14

$544

Wed 10/112:10 pmLGW - DCA

1 stop13h 45mIcelandair

Sat 10/46:59 pmDCA - LGW

1 stop9h 36mIcelandair

Deal found 9/13

$552

Tue 10/283:35 pmLHR - DCA

1 stop11h 22mBritish Airways

Thu 11/612:30 pmDCA - LHR

1 stop13h 15mBritish Airways

Deal found 9/13

$574

Tue 10/1412:10 pmLGW - DCA

1 stop26h 56mJetBlue

Mon 10/202:59 pmDCA - LGW

1 stop13h 36mJetBlue

Deal found 9/14

$611

Wed 10/159:20 amLCY - DCA

2 stops18h 39mVirgin Atlantic

Wed 10/2212:42 pmDCA - LCY

2 stops13h 33mVirgin Atlantic

Deal found 9/15

$637

Wed 10/2911:45 amLGW - DCA

2 stops15h 12mIberia

Sun 11/91:44 pmDCA - LGW

2 stops16h 06mIberia

Deal found 9/13

$766

Mon 12/19:00 amLHR - DCA

2 stops15h 45mAir Canada

Mon 12/811:05 amDCA - LHR

1 stop15h 05mAir Canada

Deal found 9/13

$539

Sat 9/279:30 amLHR - DCA

1 stop11h 21mUnited Airlines

Sat 10/44:35 pmDCA - LHR

1 stop12h 00mUnited Airlines

Deal found 9/14

$568

Wed 1/72:45 pmLHR - DCA

1 stop12h 30mBritish Airways

Fri 1/237:54 pmDCA - LHR

1 stop11h 06mBritish Airways

Deal found 9/13

$574

Tue 10/281:25 pmLHR - DCA

1 stop12h 31mUnited Airlines

Mon 11/34:10 pmDCA - LHR

1 stop10h 00mUnited Airlines

Deal found 9/14

$568

Last-minute flights from London to Reagan-National
Discover last-minute flight deals from London to Reagan-National. Data last updated September 15, 2025 and is based on user searches.

Fri 9/1912:10 pmLGW - DCA

1 stop29h 49mJetBlue

Thu 9/2510:00 amDCA - LGW

1 stop18h 35mJetBlue

Deal found 9/14

$549

Thu 9/2512:10 pmLGW - DCA

1 stop24h 59mIcelandair

Thu 10/21:20 pmDCA - LGW

1 stop15h 15mIcelandair

Deal found 9/14

$544

Sat 9/276:50 amLHR - DCA

2 stops14h 01mMultiple Airlines

Sat 10/44:35 pmDCA - LHR

1 stop12h 00mMultiple Airlines

Deal found 9/14

$544

Fri 10/33:05 pmLGW - DCA

1 stop13h 02mAmerican Airlines

Sun 10/53:35 pmDCA - LGW

1 stop11h 15mAmerican Airlines

Deal found 9/14

$537

Fri 10/39:30 amLHR - DCA

1 stop17h 21mMultiple Airlines

Sun 10/56:00 amDCA - LHR

1 stop19h 30mMultiple Airlines

Deal found 9/14

$545

Wed 10/86:50 amLHR - DCA

2 stops14h 01mAir Canada

Mon 10/134:35 pmDCA - LHR

1 stop12h 00mAir Canada

Deal found 9/14

$541

Tue 10/286:50 amLHR - DCA

2 stops13h 06mAir Canada

Sat 11/86:00 amDCA - LHR

1 stop20h 10mAir Canada

Deal found 9/13

$540

Tue 10/286:50 amLHR - DCA

2 stops13h 06mAir Canada

Tue 11/411:05 amDCA - LHR

1 stop15h 05mAir Canada

Deal found 9/13

$542

Tue 10/286:50 amLHR - DCA

2 stops13h 06mAir Canada

Mon 11/311:05 amDCA - LHR

2 stops14h 25mAir Canada

Deal found 9/14

$546

Wed 10/296:50 amLHR - DCA

2 stops13h 06mAir Canada

Wed 11/54:10 pmDCA - LHR

1 stop10h 00mAir Canada

Deal found 9/14

$538

Thu 10/306:50 amLHR - DCA

2 stops13h 06mAir Canada

Thu 11/611:05 amDCA - LHR

2 stops14h 25mAir Canada

Deal found 9/15

$548

Fri 10/316:50 amLHR - DCA

2 stops13h 06mAir Canada

Mon 11/311:05 amDCA - LHR

2 stops14h 25mAir Canada

Deal found 9/13

$547

One-way flights from London to Reagan-National
Search for one-way flight options from London to Reagan-National. Find affordable one-way fares based on user searches. Data last updated September 15, 2025.

Fri 10/32:00 pmLGW - DCA

2 stops31h 59mMultiple Airlines

Deal found 9/13

$506

Mon 12/17:10 amLGW - DCA

3 stops41h 35mMultiple Airlines

Deal found 9/15

$507

Wed 10/1510:45 amLGW - DCA

2 stops16h 49mMultiple Airlines

Deal found 9/13

$508

Tue 9/239:20 amLCY - DCA

3 stops18h 14mMultiple Airlines

Deal found 9/14

$509

Mon 1/122:00 pmLGW - DCA

2 stops28h 04mMultiple Airlines

Deal found 9/15

$513

Thu 10/302:00 pmLGW - DCA

3 stops30h 59mMultiple Airlines

Deal found 9/14

$519

Wed 12/106:20 amLGW - DCA

3 stops31h 35mMultiple Airlines

Deal found 9/13

$521

Wed 10/12:00 pmLGW - DCA

3 stops51h 10mMultiple Airlines

Deal found 9/14

$524

Mon 12/158:15 amLHR - DCA

3 stops43h 39mMultiple Airlines

Deal found 9/12

$526

Wed 12/109:50 amLHR - DCA

2 stops14h 55mMultiple Airlines

Deal found 9/13

$527

Wed 10/158:15 amLHR - DCA

1 stop16h 07mJetBlue

Deal found 9/13

$528

Mon 9/229:00 amLGW - DCA

3 stops30h 20mMultiple Airlines

Deal found 9/12

$529

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 11/6

9:00 am-7:45 pm

2 stops15h 45m

Washington, D.C. Reagan-National

Mon 11/10

12:55 pm-7:10 am

2 stops13h 15m

$539

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 12/1

9:00 am-7:45 pm

2 stops15h 45m

Washington, D.C. Reagan-National

Mon 12/8

11:05 am-7:10 am

1 stop15h 05m

$539

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 11/23

1:25 pm-9:56 pm

1 stop13h 31m

Washington, D.C. Reagan-National

Thu 12/4

6:00 am-7:10 am

1 stop20h 10m

$544

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 12/2

9:30 am-7:35 pm

2 stops15h 05m

Washington, D.C. Reagan-National

Mon 12/15

3:00 pm-6:20 am

1 stop10h 20m

$544

LondonWashington, D.C.

LGW - DCA

LGWDCA

London Gatwick

Wed 10/1

12:10 pm-8:55 pm

1 stop13h 45m

Washington, D.C. Reagan-National

Sat 10/4

6:59 pm-9:35 am

1 stop9h 36m

$552

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 9/27

9:30 am-3:51 pm

1 stop11h 21m

Washington, D.C. Reagan-National

Sat 10/4

4:35 pm-9:35 am

1 stop12h 00m

$568

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 10/28

1:25 pm-9:56 pm

1 stop12h 31m

Washington, D.C. Reagan-National

Mon 11/3

4:10 pm-7:10 am

1 stop10h 00m

$568

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Thu 10/9

9:30 am-3:51 pm

1 stop11h 21m

Washington, D.C. Reagan-National

Mon 10/13

6:00 am-8:40 pm

1 stop9h 40m

$569

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 9/27

9:30 am-3:51 pm

1 stop11h 21m

Washington, D.C. Reagan-National

Sun 10/5

10:13 am-6:30 am

2 stops15h 17m

$569

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 10/29

1:25 pm-9:56 pm

1 stop12h 31m

Washington, D.C. Reagan-National

Wed 11/5

11:05 am-7:10 am

2 stops15h 05m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 60 results

...

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from London with our price prediction graph.

Estimated round-trip 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 to Washington, D.C. Reagan-National Airport

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

Booking 24 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to Washington, D.C. Reagan-National Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from London to Washington, D.C. Reagan-National Airport (average of $278). Flying from London to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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 to fly round-trip from London to Washington, D.C. Reagan-National Airport?

Related info for your journey

How long is the flight from London to Washington, D.C. Reagan-National Airport?
Air Canada, United Airlines, and Icelandair can get you from London to Washington, D.C. Reagan-National Airport in just under 13h 45m. Your travel time can differ by up to 2h. London and Washington, D.C. Reagan-National Airport are separated by a distance of 3670 mi. This flight may include one or multiple stops.
What are the most popular routes from London to Washington, D.C. Reagan-National Airport?
The most popular flight routes from London to Washington, D.C. Reagan-National Airport are London Heathrow - Washington, D.C. Reagan-National, London Gatwick - Washington, D.C. Reagan-National and London City - Washington, D.C. Reagan-National.
Can I find deals for flights from London to Reagan-National that include hotel bookings?
Yes. In addition to deals on London to Reagan-National flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from London to Reagan-National?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Reagan-National.
Can I find deals for business class flights from London to Reagan-National?
Yes. Cheapflights offers flight deals from London 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 to Washington, D.C. Reagan-National Airport?
Currently, February is the cheapest month in which you can book a flight from London to Washington, D.C. Reagan-National Airport (average of $278). Flying from London to Washington, D.C. Reagan-National Airport in March is currently the most expensive (average of $335). 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.

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$506+ Cheap flights from London (LON) to Reagan-National (DCA)

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from London to Reagan-National with Cheapflights

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Cheapflights Tip: The best prices from London to Washington, D.C. Reagan-National are usually found in February or January, booked 24 days in advance, depart on a Tuesday or Friday and return on a Tuesday

Cheap flight deals from London to Reagan-National

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Find flight deals from London to Reagan-National

Cheapest flights from London to Reagan-NationalExplore the most affordable flight options available from London to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Explore the most affordable flight options available from London to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Washington, D.C. Reagan-National Airport that are best for you.

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

Have a flexible travel schedule? Discover the best time to fly to Reagan-National from London with our price prediction graph.

Cheapflights Insights

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

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

Use this chart to determine the optimal time to book a round-trip flight from London to Reagan-National. Price data was last updated on September 12, 2025.

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

How much does it cost to fly round-trip from London to Washington, D.C. Reagan-National Airport?

Related info for your journey

Find useful and relevant information for your journey from London 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 to Washington, D.C. Reagan-National Airport?

What are the most popular routes from London to Washington, D.C. Reagan-National Airport?

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

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

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

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

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Cheapest flights from London to Reagan-National
Explore the most affordable flight options available from London to Reagan-National. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.