Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. to London Heathrow Airport from $185

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London Heathrow Airport departing on 1/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Deals available from 900+ travel sites.

"This year, momondo is the #1 place for airfares on the internet."
Save money when you book flights with momondo
Big names and deals
Big names and deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize your results.
Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.
Price Alerts
Price Alerts
Not ready to book? to track prices.

Find the cheapest flights from Washington, D.C. to London

Cheap round-trip flights

These are some of the best round-trip flight deals from Washington, D.C. to London that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Washington, D.C. to London.

Cheap last minute flights

Planning a quick getaway from Washington, D.C. to London? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to London, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Washington, D.C. to London

Find recent round-trip train or bus tickets from Washington, D.C. to London.

All round-trip flight deals to London

The cheapest plane tickets to London found on KAYAK recently.
7:30 pm - 7:30 pmBWI-LHR
19h 00m1 stop
8:40 pm - 6:30 pmLHR-BWI
26h 50m1 stop
$453Icelandair
Find Deal
mié., dic. 4 - mié., dic. 11
7:30 pm - 10:50 amBWI-LHR
10h 20m1 stop
12:15 pm - 6:30 pmLHR-BWI
11h 15m1 stop
$458Icelandair
Find Deal
vie., ene. 17 - sáb., ene. 25
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$606Iberia
Find Deal
mié., dic. 4 - vie., dic. 13
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$612British Airways
Find Deal
mié., dic. 11 - jue., dic. 19
6:25 pm - 6:40 amIAD-LHR
7h 15mnonstop
1:45 pm - 4:25 pmLHR-IAD
31h 40m1 stop
$615United Airlines
Find Deal
mié., dic. 4 - mié., dic. 11
3:55 pm - 7:10 amIAD-LHR
10h 15m1 stop
7:30 am - 3:50 pmLHR-IAD
13h 20m1 stop
$616United Airlines
Find Deal
mar., nov. 19 - jue., nov. 28
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$618Iberia
Find Deal
mié., dic. 4 - vie., dic. 13
6:42 am - 10:10 pmDCA-LHR
10h 28m1 stop
7:25 pm - 8:00 pmLHR-DCA
29h 35m2 stops
$624British Airways
Find Deal
mar., dic. 3 - lun., dic. 9
5:29 pm - 9:15 amBWI-LHR
10h 46m1 stop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$635American Airlines
Find Deal
mar., dic. 3 - jue., dic. 19
6:29 pm - 10:00 amDCA-LHR
10h 31m1 stop
8:40 am - 5:22 pmLHR-DCA
13h 42m1 stop
$689American Airlines
Find Deal
dom., dic. 29 - mar., ene. 7
7:30 pm - 10:50 amBWI-LHR
10h 20m1 stop
$185Icelandair
Find Deal
lun., ene. 6
7:30 pm - 7:30 pmBWI-LHR
19h 00m1 stop
$186Icelandair
Find Deal
jue., nov. 28
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$371Iberia
Find Deal
mar., ene. 7
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$373Iberia
Find Deal
mar., dic. 31
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
$383British Airways
Find Deal
mié., ene. 8
6:00 pm - 6:15 amIAD-LHR
7h 15mnonstop
$384British Airways
Find Deal
mié., nov. 20
7:00 pm - 7:55 amDCA-LHR
31h 55m1 stop
$396United Airlines
Find Deal
sáb., ene. 4
8:17 pm - 12:00 pmBWI-LHR
10h 43m1 stop
$398American Airlines
Find Deal
dom., dic. 29
11:06 am - 7:10 amDCA-LHR
15h 04m2 stops
$403United Airlines
Find Deal
mié., ene. 8
1:45 pm - 6:45 amDCA-LHR
12h 00m2 stops
$440American Airlines
Find Deal
jue., dic. 12
7:30 pm - 7:30 pmBWI-LHR
19h 00m1 stop
8:40 pm - 6:30 pmLHR-BWI
26h 50m1 stop
$611Icelandair
Find Deal
jue., nov. 7 - jue., dic. 12
7:30 pm - 7:30 pmBWI-LHR
19h 00m1 stop
8:40 pm - 6:30 pmLHR-BWI
26h 50m1 stop
$645Icelandair
Find Deal
jue., nov. 7 - mié., nov. 13
6:30 pm - 6:40 amIAD-LHR
7h 10mnonstop
1:30 pm - 8:20 pmLHR-IAD
11h 50m1 stop
$740United Airlines
Find Deal
mié., nov. 6 - mié., nov. 13
5:35 pm - 9:10 amIAD-LHR
10h 35m1 stop
1:45 pm - 3:30 pmLHR-IAD
30h 45m1 stop
$743United Airlines
Find Deal
mié., nov. 6 - mar., nov. 12
6:22 pm - 7:00 amIAD-LHR
31h 38m1 stop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$770British Airways
Find Deal
sáb., nov. 9 - mar., nov. 19
5:26 pm - 12:00 pmBWI-LHR
13h 34m1 stop
11:50 am - 10:17 pmLHR-BWI
15h 27m1 stop
$774British Airways
Find Deal
mié., nov. 6 - mié., nov. 13
5:58 pm - 8:35 amDCA-LHR
9h 37m1 stop
11:25 am - 10:37 pmLHR-DCA
16h 12m2 stops
$801Iberia
Find Deal
vie., nov. 8 - vie., nov. 15
8:13 pm - 12:00 pmBWI-LHR
10h 47m1 stop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$809American Airlines
Find Deal
jue., nov. 7 - jue., nov. 21
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
4:30 pm - 7:45 pmLHR-IAD
8h 15mnonstop
$854Iberia
Find Deal
sáb., nov. 9 - lun., nov. 18
12:41 pm - 11:40 amBWI-LHR
17h 59m1 stop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$859American Airlines
Find Deal
vie., nov. 8 - sáb., nov. 16
9:55 pm - 10:05 amIAD-LHR
7h 10mnonstop
12:10 pm - 4:35 pmLHR-IAD
8h 25mnonstop
$568British Airways
Find Deal
mié., mar. 5 - mié., mar. 12
6:25 pm - 6:55 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$601Virgin Atlantic
Find Deal
dom., nov. 17 - mar., nov. 26
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$606Iberia
Find Deal
mié., dic. 4 - mié., dic. 18
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$615Iberia
Find Deal
mié., ene. 22 - mié., feb. 5
10:30 pm - 11:05 amIAD-LHR
7h 35mnonstop
4:20 pm - 8:15 pmLHR-IAD
8h 55mnonstop
$629United Airlines
Find Deal
dom., nov. 17 - mar., nov. 26
6:25 pm - 6:55 amIAD-LHR
7h 30mnonstop
12:25 pm - 4:05 pmLHR-IAD
8h 40mnonstop
$631Delta
Find Deal
mar., dic. 3 - vie., dic. 20
6:25 pm - 6:55 amIAD-LHR
7h 30mnonstop
12:25 pm - 5:05 pmLHR-IAD
8h 40mnonstop
$641Delta
Find Deal
mar., mar. 4 - vie., mar. 14
10:15 pm - 10:40 amIAD-LHR
7h 25mnonstop
4:40 pm - 7:50 pmLHR-IAD
8h 10mnonstop
$644United Airlines
Find Deal
mar., abr. 15 - mar., abr. 22
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$662American Airlines
Find Deal
mié., nov. 20 - jue., nov. 28
8:30 pm - 8:40 amBWI-LHR
7h 10mnonstop
3:25 pm - 6:45 pmLHR-BWI
8h 20mnonstop
$684American Airlines
Find Deal
mié., ene. 1 - mié., ene. 8

JetBlue flights from Washington, D.C. to London Heathrow Airport

Our best JetBlue deals on Washington, D.C. to London Heathrow Airport flight tickets
JetBlue
Nov 19
DCA7:55 amWashington, D.C. Reagan-National
17h 00m
1 stop
LHR5:55 amLondon Heathrow
Nov 25
LHR8:25 amLondon Heathrow
12h 04m
1 stop
DCA3:29 pmWashington, D.C. Reagan-National
JetBlue
Dec 30
DCA7:45 amWashington, D.C. Reagan-National
17h 10m
1 stop
LHR5:55 amLondon Heathrow
Apr 24
LHR8:25 amLondon Heathrow
13h 18m
1 stop
DCA4:43 pmWashington, D.C. Reagan-National
JetBlue
Nov 19
DCA9:45 amWashington, D.C. Reagan-National
15h 10m
1 stop
LHR5:55 amLondon Heathrow
Nov 24
LHR8:25 amLondon Heathrow
15h 30m
1 stop
DCA6:55 pmWashington, D.C. Reagan-National

Scandinavian Airlines flights from Washington, D.C. to London Heathrow Airport

Our best Scandinavian Airlines deals on Washington, D.C. to London Heathrow Airport flight tickets
Scandinavian Airlines
Nov 11
IAD5:10 pmWashington, D.C. Dulles Intl
19h 30m
1 stop
LHR5:40 pmLondon Heathrow
Nov 19
LHR7:30 pmLondon Heathrow
25h 10m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Scandinavian Airlines
Nov 11
IAD5:10 pmWashington, D.C. Dulles Intl
20h 20m
1 stop
LHR6:30 pmLondon Heathrow
Nov 21
LHR6:40 amLondon Heathrow
14h 00m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl
Scandinavian Airlines
Nov 11
IAD5:10 pmWashington, D.C. Dulles Intl
16h 25m
2 stops
LHR2:35 pmLondon Heathrow
Nov 19
LHR7:30 pmLondon Heathrow
25h 10m
1 stop
IAD3:40 pmWashington, D.C. Dulles Intl

How to get the cheapest flight ticket from Washington, D.C. to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. and London Heathrow Airport?

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

April. The cheapest time of year to fly to London Heathrow Airport from Washington, D.C. is April. Most expensive is June

What is the cheapest day to depart Washington, D.C. for London Heathrow Airport?

Wednesday. The cheapest day of the week is typically Wednesday. The most expensive is typically Saturday

When is the cheapest time to fly from Washington, D.C. to London Heathrow Airport?

In the morning. Washington, D.C. to London Heathrow Airport flights are approximately 8% more expensive at noon than in the morning

What is the cheapest airline that flies to London Heathrow Airport from Washington, D.C.?

Scandinavian Airlines. Scandinavian Airlines, PLAY, and Aer Lingus are the most popular carriers operating from Washington, D.C. to London Heathrow Airport

How far in advance should you book Washington, D.C. to London Heathrow Airport flights?

29 days before. The cheapest time to buy a flight from Washington, D.C. to London Heathrow Airport is approximately 29 days to departure

How many flights depart from Washington, D.C. to London Heathrow Airport on average per day?

16 flights are operational weekly from Washington, D.C. to London Heathrow Airport as of November 2024. The most popular departure time for this route is 7:00PM, with 95% of flights per day taking off in the evening.

How many flights depart from Washington, D.C. to London Heathrow Airport on average per week?

As of November 2024, there are 118 flights per week flying from Washington, D.C. to London Heathrow Airport. The most common day of the week flights depart is Sunday, with 22% of flights taking off on this day.

What cabin class options are available on Washington, D.C. to London Heathrow Airport flights?

There are 4 cabin classes available to choose from on Washington, D.C. to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Washington, D.C. to London Heathrow Airport flights?

You could potentially save up to 50% on your flight if you consider stops on a Washington, D.C. to London Heathrow Airport flight.

How have Washington, D.C. to London Heathrow Airport flight prices changed over time?

As of November 2024, prices for Washington, D.C. to London Heathrow Airport flights are approximately 19% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. to London Heathrow Airport (WAS to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to London Heathrow Airport

Best Price Found

$185

Fastest flight time

7h 10m

Direct flights

Mon, Tue, Thu, Fri, Sat and Sun
The best one-way flight to London Heathrow Airport from Washington, D.C. in the past 72 hours is $185. The best round-trip flight deal from Washington, D.C. to London Heathrow Airport found on momondo in the last 72 hours is $453.
The fastest flight from Washington, D.C. to London Heathrow Airport takes 7h 10m
Direct flights go from Washington, D.C. to London Heathrow Airport on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: Finnair, Iberia and American Airlines.

  • How far is Washington, D.C. to London Heathrow by plane?

    Washington, D.C. and London Heathrow are 3649.4 mi apart from one another. 7h 10m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. to London Heathrow Airport?

    Prices for flights from Washington, D.C. to London Heathrow Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. to London Heathrow Airport?

  • How old do you have to be to fly from Washington, D.C. to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to London Heathrow Airport.

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The required travel and health documents for your London Heathrow Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at London Heathrow Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Washington, D.C. to London Heathrow Airport?

  • What is the most popular airline from Washington, D.C. to London Heathrow Airport?


Best airlines flying from Washington, D.C. to London Heathrow Airport

Compare and see reviews for airlines that fly from Washington, D.C. to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom $366Free CancellationRating
7.1
87 reviews
Search PLAY flights
Scandinavian AirlinesPriceFrom $394Free CancellationRating
7.3
1,303 reviews
Search Scandinavian Airlines flights
TAP AIR PORTUGALPriceFrom $470Free CancellationRating
7.1
1,896 reviews
Search TAP AIR PORTUGAL flights
Aer LingusPriceFrom $479Free CancellationRating
7.1
1,088 reviews
Search Aer Lingus flights
IcelandairPriceFrom $485Free CancellationRating
7.2
578 reviews
Search Icelandair flights
FinnairPriceFrom $531Free CancellationRating
7.7
1,316 reviews
Search Finnair flights
KLMPriceFrom $546Free CancellationRating
7.8
1,350 reviews
Search KLM flights
DeltaPriceFrom $548Free CancellationRating
8.0
8,829 reviews
Search Delta flights
LufthansaPriceFrom $557Free CancellationRating
6.8
7,163 reviews
Search Lufthansa flights
IberiaPriceFrom $575Free CancellationRating
7.0
2,673 reviews
Search Iberia flights
  • Delta Flights From Washington, D.C. to London Heathrow Airport

    Delta flight deals from Washington, D.C. to London Heathrow Airport start from $548 round-trip. Over the 3 Delta flights for this route in a normal week, average airfare is usually $830 round-trip - but some users have found much cheaper deals with momondo.

  • KLM Flights From Washington, D.C. to London Heathrow Airport

    Across 1,350 KLM reviews on momondo, the average score is 7.8/10. KLM flies from Washington, D.C. to London Heathrow Airport about 3 times each week, with ticket deals ranging from $546 to $780. Price data is based on momondo searches in the last 72 hours.


Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to London?

Finding the right flight to London from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to London quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to London?

momondo provides multiple filters to help you find the best flight to London from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Washington, D.C. to London right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to London now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to London and let you know when they change.


An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
From?
To?
sáb. 11/9
sáb. 11/16
Email me momondo's favorite deals

Find better results for your trip to London

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo