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

For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $593. Users have also found prices from $630 and $655 on Finnair and Icelandair, respectively.

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

Travelers seeking maximum savings on their London Heathrow Airport to Washington, D.C. Reagan-National Airport flight should consider departing on Saturday 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 is the cheapest day to fly round-trip from London Heathrow Airport to Washington, D.C. Reagan-National Airport?

It’s generally more expensive to depart on a Friday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

February is one of the best times of the year to fly to Washington, D.C. Reagan-National Airport from London Heathrow Airport. Prices for February average $739 per person but you can even find prices for as low as $305. The most expensive prices can be found in the month of July. Opting for a February flight can save you 23% on your journey compared to booking in July

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 vacation 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.

$565+ Flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 52 days in advance, which can save you up to 46% on flights from London Heathrow Airport to Washington, D.C. Reagan-National Airport compared to booking the week you need them. Waiting 52 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $742. For sooner than that we have options available in the next 3 days from $1,123.

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

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Cheapflights Tip: The best prices from London Heathrow to Washington, D.C. Reagan-National are usually found in January or March, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Heathrow to Reagan-National

Round-trip from	$609 (Booking.com)
One-way from	$565 (Kiwi.com)
Popular in	December
Cheapest in	January
Average price	$994

From London Heathrow to Washington, D.C. Reagan-National

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One-way flight from London Heathrow to Washington, D.C. Reagan-National

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Highest demand for flights based on searches. 4% potential increase in price ($36 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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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 July 28, 2025.

Mon 12/11:25 pmLHR - DCA

2 stops14h 10mAir Canada

Mon 12/1512:55 pmDCA - LHR

2 stops13h 15mAir Canada

Deal found 7/28

$609

Tue 9/28:25 amLHR - DCA

1 stop16h 38mJetBlue

Tue 9/2311:55 amDCA - LHR

1 stop13h 35mJetBlue

Deal found 7/28

$610

Sun 8/312:05 pmLHR - DCA

1 stop12h 43mUnited Airlines

Tue 9/99:40 amDCA - LHR

1 stop15h 50mUnited Airlines

Deal found 7/27

$622

Fri 8/228:25 amLHR - DCA

1 stop16h 38mIcelandair

Wed 9/36:25 amDCA - LHR

1 stop9h 20mIcelandair

Deal found 7/27

$653

Sat 9/275:00 pmLHR - DCA

1 stop11h 07mBritish Airways

Wed 10/17:23 pmDCA - LHR

1 stop9h 17mBritish Airways

Deal found 7/28

$654

Sun 9/79:15 amLHR - DCA

1 stop11h 44mAmerican Airlines

Thu 9/186:45 amDCA - LHR

1 stop9h 55mAmerican Airlines

Deal found 7/28

$661

Best flights from Heathrow to Reagan-National
Discover carefully curated flight deals from Heathrow to Reagan-National that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 28, 2025.

Mon 12/11:25 pmLHR - DCA

2 stops14h 10mAir Canada

Mon 12/1512:55 pmDCA - LHR

2 stops13h 15mAir Canada

Deal found 7/28

$609

Tue 9/28:25 amLHR - DCA

1 stop16h 38mJetBlue

Tue 9/2311:55 amDCA - LHR

1 stop13h 35mJetBlue

Deal found 7/28

$610

Sun 8/312:05 pmLHR - DCA

1 stop12h 43mUnited Airlines

Tue 9/99:40 amDCA - LHR

1 stop15h 50mUnited Airlines

Deal found 7/27

$622

Fri 8/228:25 amLHR - DCA

1 stop16h 38mIcelandair

Wed 9/36:25 amDCA - LHR

1 stop9h 20mIcelandair

Deal found 7/27

$653

Sat 9/275:00 pmLHR - DCA

1 stop11h 07mBritish Airways

Wed 10/17:23 pmDCA - LHR

1 stop9h 17mBritish Airways

Deal found 7/28

$654

Sun 9/79:15 amLHR - DCA

1 stop11h 44mAmerican Airlines

Thu 9/186:45 amDCA - LHR

1 stop9h 55mAmerican Airlines

Deal found 7/28

$661

Last-minute flights from Heathrow to Reagan-National
Discover last-minute flight deals from Heathrow to Reagan-National. Data last updated July 28, 2025 and is based on user searches.

Mon 8/46:15 amLHR - DCA

2 stops18h 40mBritish Airways

Sun 8/107:20 pmDCA - LHR

1 stop19h 25mBritish Airways

Deal found 7/27

$727

Tue 8/58:55 amLHR - DCA

1 stop17h 04mFinnair

Tue 8/122:54 pmDCA - LHR

1 stop11h 56mFinnair

Deal found 7/27

$723

Tue 8/57:05 pmLHR - DCA

2 stops29h 54mMultiple Airlines

Tue 8/121:06 pmDCA - LHR

2 stops14h 19mMultiple Airlines

Deal found 7/27

$766

Tue 8/58:25 amLHR - DCA

1 stop31h 34mIcelandair

Thu 8/1411:45 amDCA - LHR

1 stop13h 45mIcelandair

Deal found 7/27

$779

Wed 8/68:25 amLHR - DCA

1 stop14h 40mJetBlue

Wed 8/133:45 pmDCA - LHR

1 stop9h 45mJetBlue

Deal found 7/28

$720

Wed 8/65:00 pmLHR - DCA

1 stop11h 18mIberia

Tue 8/121:06 pmDCA - LHR

2 stops14h 19mIberia

Deal found 7/26

$788

Thu 8/76:50 amLHR - DCA

2 stops14h 38mUnited Airlines

Sat 9/203:59 pmDCA - LHR

1 stop10h 16mUnited Airlines

Deal found 7/28

$697

Thu 8/71:30 pmLHR - DCA

1 stop11h 29mAmerican Airlines

Thu 8/146:30 amDCA - LHR

1 stop10h 10mAmerican Airlines

Deal found 7/26

$774

Thu 8/79:30 amLHR - DCA

1 stop17h 18mAir Canada

Sat 8/1612:55 pmDCA - LHR

2 stops16h 05mAir Canada

Deal found 7/26

$823

Sun 8/179:15 amLHR - DCA

1 stop11h 42mAmerican Airlines

Fri 11/212:00 pmDCA - LHR

1 stop11h 20mAmerican Airlines

Deal found 7/26

$667

Fri 8/228:25 amLHR - DCA

1 stop16h 38mIcelandair

Wed 9/36:25 amDCA - LHR

1 stop9h 20mIcelandair

Deal found 7/27

$653

Fri 8/2210:55 amLHR - DCA

1 stop12h 19mDelta

Sat 3/711:00 amDCA - LHR

1 stop14h 55mDelta

Deal found 7/27

$701

One-way flights from Heathrow to Reagan-National
Search for one-way flight options from Heathrow to Reagan-National. Find affordable one-way fares based on user searches. Data last updated July 28, 2025.

Wed 9/176:40 amLHR - DCA

3 stops41h 50mMultiple Airlines

Deal found 7/27

$565

Sun 12/79:20 amLHR - DCA

1 stop13h 44mJetBlue

Deal found 7/28

$593

Mon 9/1510:20 amLHR - DCA

2 stops17h 47mFinnair

Deal found 7/26

$630

Tue 11/117:25 amLHR - DCA

1 stop12h 07mIcelandair

Deal found 7/27

$655

Mon 9/89:05 pmLHR - DCA

3 stops31h 36mScandinavian Airlines

Deal found 7/28

$658

Wed 11/52:50 pmLHR - DCA

2 stops36h 29mWestJet

Deal found 7/28

$711

Sat 10/45:00 pmLHR - DCA

1 stop11h 07mIberia

Deal found 7/28

$715

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

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 12/1

1:25 pm-10:35 pm

2 stops14h 10m

Washington, D.C. Reagan-National

Mon 12/15

12:55 pm-7:10 am

2 stops13h 15m

$609

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 9/2

8:25 am-8:03 pm

1 stop16h 38m

Washington, D.C. Reagan-National

Wed 9/24

3:15 pm-6:30 am

1 stop10h 15m

$610

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 8/31

2:05 pm-9:48 pm

1 stop12h 43m

Washington, D.C. Reagan-National

Tue 9/9

9:40 am-6:30 am

1 stop15h 50m

$622

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Fri 8/22

8:25 am-8:03 pm

1 stop16h 38m

Washington, D.C. Reagan-National

Wed 9/3

6:25 am-8:45 pm

1 stop9h 20m

$653

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sat 9/27

5:00 pm-11:07 pm

1 stop11h 07m

Washington, D.C. Reagan-National

Wed 10/1

7:23 pm-9:40 am

1 stop9h 17m

$654

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 9/7

9:15 am-3:59 pm

1 stop11h 44m

Washington, D.C. Reagan-National

Thu 9/18

6:45 am-9:40 pm

1 stop9h 55m

$661

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Wed 9/17

6:40 am-7:30 pm

3 stops41h 50m

$565

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Sun 12/7

9:20 am-6:04 pm

1 stop13h 44m

$593

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Mon 9/15

10:20 am-11:07 pm

2 stops17h 47m

$630

LondonWashington, D.C.

LHR - DCA

LHRDCA

London Heathrow

Tue 11/11

7:25 am-2:32 pm

1 stop12h 07m

$655

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Showing 1-10 of 13 results

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 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 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?

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 90 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 $278). Flying from London Heathrow Airport 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.

Reviews of airlines servicing Reagan-National

Read reviews from past customers who have flown Finnair, United Airlines, and Scandinavian Airlines from London Heathrow Airport to Washington, D.C. Reagan-National Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Finnair

7.6

Good

1,316 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Finnair

7.6

Good

1,316 reviews

Finnair

7.6

Good

1,316 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

United Airlines

7.4

Good

8,893 reviews

Finnair

7.6

Good

1,316 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Scandinavian Airlines

7.3

Good

1,446 reviews

Finnair

7.6

Good

1,316 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

JetBlue

7.3

Good

2,913 reviews

Finnair

7.6

Good

1,316 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

American Airlines

7.2

Good

10,000 reviews

Finnair

7.6

Good

1,316 reviews

Reviews

1 / 20

10.0

Excellent

Anonymous,May 2025

FRA - DFW

Related info for your journey

What are the cheapest airlines flying from London Heathrow Airport to Washington, D.C. Reagan-National Airport round-trip?
Flying on Air Canada is currently your cheapest option to Washington, D.C. Reagan-National Airport, with prices starting at $609. Additional round-trip tickets that might be worth considering are offered by JetBlue and United Airlines, with the lowest prices starting at $610 and $622, respectively. Air Canada is currently priced 27% below the average price you’ll pay for this route.
What are the cheapest airlines to fly from London Heathrow Airport to Washington, D.C. Reagan-National Airport one-way?
For one-way options, check prices for JetBlue. According to our data, you can fly for as low as $593. Users have also found prices from $630 and $655 on Finnair and Icelandair, respectively.
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 vacation 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 $278). Flying from London Heathrow Airport 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.

See more FAQs

Woodbridge

Arlington

Alexandria

Tysons

Silver Spring

Fredericksburg

Gaithersburg

Easton

Towson

Linthicum Heights

Fairfax

Manassas

Falls Church

Waldorf

Laurel

Rockville

Oxon Hill

Springfield

National Harbor

Dundalk

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$565+ Cheap flights from Heathrow (LHR) 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Heathrow to Reagan-National with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from London Heathrow to Washington, D.C. Reagan-National are usually found in January or March, booked 90 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday

Cheap flight deals from Heathrow to Reagan-National

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Heathrow to Reagan-National

Cheapest flights from Heathrow to Reagan-NationalExplore 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 July 28, 2025.

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 July 28, 2025.

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.

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.

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 round-trip flight from Heathrow to Reagan-National. Price data was last updated on July 25, 2025.

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

Reviews of airlines servicing Reagan-National

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?

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

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

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

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

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

Traveling to a place near Washington, D.C. Reagan-National Airport?

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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 July 28, 2025.