Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from London to Washington, D.C. Dulles Intl Airport from £245

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London to Washington, D.C. Dulles Intl Airport departing on 30/1. 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.'
Voted winner of Europe's Best Travel App 2023
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.
Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise 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 London to Washington, D.C.

Cheap return flights

These are some of the best return flight deals from London to Washington, D.C. 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 London to Washington, D.C..

Cheap last-minute flights

Planning a quick getaway from London to Washington, D.C.? 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 Washington, D.C., so you can enjoy a seamless trip without stopovers.

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

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

All round-trip flight deals to Washington, D.C.

The cheapest plane tickets to Washington, D.C. found on KAYAK recently.
09:00 - 15:40LTN-IAD
35h 40m2 stops
17:10 - 14:40IAD-LTN
16h 30m2 stops
tir., 14 jan. - søn., 19 jan.
09:40 - 15:40LGW-IAD
35h 00m2 stops
17:10 - 20:55IAD-LGW
22h 45m2 stops
tir., 14 jan. - søn., 19 jan.
12:05 - 16:25LHR-IAD
33h 20m1 stop
12:45 - 20:35IAD-LHR
26h 50m1 stop
£460Lufthansa
Find Deal
tor., 16 jan. - lør., 18 jan.
06:30 - 15:50LHR-IAD
14h 20m1 stop
17:17 - 06:30IAD-LHR
32h 13m1 stop
£467Lufthansa
Find Deal
tir., 28 jan. - lør., 1 feb.
20:25 - 15:45LHR-IAD
24h 20m1 stop
20:40 - 09:10IAD-LHR
7h 30mdirect
£484Virgin Atlantic
Find Deal
man., 27 jan. - tor., 20 feb.
15:45 - 15:45LHR-IAD
29h 00m1 stop
18:45 - 07:15IAD-LHR
7h 30mdirect
£490Virgin Atlantic
Find Deal
man., 3 feb. - man., 10 feb.
12:10 - 15:35LHR-IAD
8h 25mdirect
18:00 - 06:15IAD-LHR
7h 15mdirect
£495British Airways
Find Deal
man., 13 jan. - man., 20 jan.
12:10 - 15:35LHR-IAD
8h 25mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£495British Airways
Find Deal
tir., 14 jan. - man., 27 jan.
07:50 - 15:40LHR-IAD
12h 50m1 stop
17:10 - 11:25IAD-LHR
13h 15m1 stop
£531Aer Lingus
Find Deal
fre., 17 jan. - fre., 31 jan.
06:50 - 15:40LCY-IAD
13h 50m1 stop
17:10 - 08:35IAD-LCY
10h 25m1 stop
£916Aer Lingus
Find Deal
tir., 21 jan. - tor., 23 jan.
14:00 - 18:19LGW-IAD
33h 19m1 stop
tor., 30 jan.
14:00 - 18:19LGW-IAD
33h 19m1 stop
tor., 23 jan.
07:50 - 15:40LHR-IAD
12h 50m1 stop
£386Aer Lingus
Find Deal
ons., 15 jan.
20:45 - 15:40LHR-IAD
23h 55m1 stop
£393Aer Lingus
Find Deal
søn., 26 jan.
12:10 - 15:35LHR-IAD
8h 25mdirect
£497British Airways
Find Deal
ons., 15 jan.
09:20 - 15:45LCY-IAD
11h 25m1 stop
£563Virgin Atlantic
Find Deal
fre., 27 dec.
19:45 - 15:40LCY-IAD
24h 55m2 stops
£663British Airways
Find Deal
søn., 26 jan.
10:00 - 15:45LCY-IAD
10h 45m1 stop
£684Virgin Atlantic
Find Deal
lør., 28 dec.
18:15 - 15:55LCY-IAD
26h 40m2 stops
£766Lufthansa
Find Deal
tir., 31 dec.
18:15 - 14:00LCY-IAD
24h 45m2 stops
£770Lufthansa
Find Deal
tir., 7 jan.
10:40 - 14:30LGW-IAD
32h 50m1 stop
19:40 - 10:55IAD-LGW
10h 15m1 stop
man., 23 dec. - ons., 8 jan.
06:40 - 15:40LHR-IAD
14h 00m1 stop
17:10 - 09:20IAD-LHR
11h 10m1 stop
£660Scandinavian Airlines
Find Deal
man., 23 dec. - fre., 10 jan.
14:30 - 09:46LHR-IAD
24h 16m1 stop
08:45 - 08:25IAD-LHR
18h 40m1 stop
£853Lufthansa
Find Deal
lør., 21 dec. - ons., 1 jan.
14:30 - 13:51LHR-IAD
28h 21m1 stop
22:15 - 10:50IAD-LHR
7h 35mdirect
£935Lufthansa
Find Deal
lør., 21 dec. - lør., 28 dec.
18:05 - 15:40LCY-IAD
26h 35m1 stop
17:10 - 12:40IAD-LCY
14h 30m1 stop
£1,133Aer Lingus
Find Deal
søn., 22 dec. - søn., 12 jan.
19:25 - 15:40LCY-IAD
25h 15m1 stop
20:45 - 18:35IAD-LCY
16h 50m1 stop
£1,171Aer Lingus
Find Deal
søn., 22 dec. - man., 30 dec.
18:55 - 15:45LCY-IAD
25h 50m1 stop
12:59 - 09:30IAD-LCY
15h 31m2 stops
£1,402Virgin Atlantic
Find Deal
søn., 22 dec. - tir., 31 dec.
20:05 - 18:02LCY-IAD
26h 57m2 stops
10:00 - 09:10IAD-LCY
18h 10m2 stops
£1,407Virgin Atlantic
Find Deal
søn., 22 dec. - tir., 31 dec.
09:10 - 15:40LCY-IAD
11h 30m1 stop
17:10 - 08:35IAD-LCY
10h 25m1 stop
£2,181British Airways
Find Deal
man., 23 dec. - man., 30 dec.
11:25 - 19:15LCY-IAD
12h 50m1 stop
21:15 - 12:40IAD-LCY
10h 25m1 stop
£2,476British Airways
Find Deal
lør., 21 dec. - ons., 1 jan.
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£481British Airways
Find Deal
man., 13 jan. - man., 20 jan.
16:30 - 19:45LHR-IAD
8h 15mdirect
21:55 - 10:05IAD-LHR
7h 10mdirect
£486British Airways
Find Deal
ons., 15 jan. - ons., 22 jan.
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£491KLM
Find Deal
tir., 14 jan. - ons., 22 jan.
12:25 - 16:05LHR-IAD
8h 40mdirect
20:40 - 09:10IAD-LHR
7h 30mdirect
£498Virgin Atlantic
Find Deal
man., 27 jan. - tor., 20 feb.
12:25 - 16:05LHR-IAD
8h 40mdirect
18:45 - 07:15IAD-LHR
7h 30mdirect
£507Virgin Atlantic
Find Deal
man., 3 feb. - man., 10 feb.
16:30 - 19:45LHR-IAD
8h 15mdirect
22:40 - 11:05IAD-LHR
7h 25mdirect
£513Finnair
Find Deal
tir., 28 jan. - ons., 9 apr.
16:30 - 19:45LHR-IAD
8h 15mdirect
22:40 - 11:05IAD-LHR
7h 25mdirect
£514Finnair
Find Deal
man., 20 jan. - tor., 15 maj
12:25 - 16:05LHR-IAD
8h 40mdirect
18:25 - 06:55IAD-LHR
7h 30mdirect
£519KLM
Find Deal
man., 13 jan. - søn., 26 jan.
16:20 - 20:15LHR-IAD
8h 55mdirect
22:15 - 10:50IAD-LHR
7h 35mdirect
£599Lufthansa
Find Deal
man., 27 jan. - man., 3 feb.
12:05 - 15:45LHR-IAD
8h 40mdirect
19:25 - 06:40IAD-LHR
7h 15mdirect
£622Lufthansa
Find Deal
søn., 16 feb. - man., 17 mar.

Icelandair flights from London to Washington, D.C. Dulles Intl Airport

Our best Icelandair deals on London to Washington, D.C. Dulles Intl Airport flight tickets
Icelandair
13 Feb
LGW11:55London Gatwick
11h 30m
1 stop
IAD18:25Washington, D.C. Dulles Intl
4 Mar
IAD19:40Washington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55London Gatwick
Icelandair
16 Jan
LGW11:55London Gatwick
11h 30m
1 stop
IAD18:25Washington, D.C. Dulles Intl
23 Jan
IAD19:40Washington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55London Gatwick
Icelandair
28 Jan
LGW11:55London Gatwick
11h 30m
1 stop
IAD18:25Washington, D.C. Dulles Intl
1 Feb
IAD19:40Washington, D.C. Dulles Intl
10h 15m
1 stop
LGW10:55London Gatwick

Lufthansa flights from London to Washington, D.C. Dulles Intl Airport

Our best Lufthansa deals on London to Washington, D.C. Dulles Intl Airport flight tickets
Lufthansa
16 Jan
LHR12:05London Heathrow
33h 20m
1 stop
IAD16:25Washington, D.C. Dulles Intl
18 Jan
IAD12:45Washington, D.C. Dulles Intl
26h 50m
1 stop
LHR20:35London Heathrow
Lufthansa
28 Jan
LHR06:30London Heathrow
14h 20m
1 stop
IAD15:50Washington, D.C. Dulles Intl
1 Feb
IAD17:17Washington, D.C. Dulles Intl
32h 13m
1 stop
LHR06:30London Heathrow
Lufthansa
8 Feb
LHR18:00London Heathrow
20h 46m
1 stop
IAD09:46Washington, D.C. Dulles Intl
15 Feb
IAD22:35Washington, D.C. Dulles Intl
7h 15m
LHR10:50London Heathrow

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from London to Washington, D.C. Dulles Intl 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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?

The month of April is, on average, the cheapest month to fly to Washington, D.C. Dulles Intl Airport from London, with most prices found around £545. If you aren’t able to travel during the month of April, then book flights to Washington, D.C. Dulles Intl Airport from London during January instead. Flights to Washington, D.C. Dulles Intl Airport in January, while not as cheap as those in April, still average around £555.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Tuesday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from London. The lowest ticket price found for a Tuesday departure recently was £612. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. On the other hand, Sunday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £694.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the evening when flights can be purchased for as low as £559. In contrast, the most expensive time of day to depart to Washington, D.C. Dulles Intl Airport is in the afternoon when prices are around £694.

What is the cheapest London to Washington, D.C. Dulles Intl flight route?

Fly from London Gatwick to Washington, D.C. Dulles Intl for the best London - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from London when booking 60 days ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around £643 when searching 60 days out. Keep in mind that you might be able to find cheaper flights to Washington, D.C. Dulles Intl Airport at any time. In fact, our users found flights for as low as £446 in the past 72 hours.

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

There are 4 cabin classes available to choose from on London to Washington, D.C. Dulles Intl 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 London to Washington, D.C. Dulles Intl Airport flights?

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

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

As of December 2024, prices for London to Washington, D.C. Dulles Intl Airport flights are approximately 11% more expensive when compared to flights at the same time last year.

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

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

Cheap London to Washington, D.C. Dulles Intl Airport (LON to IAD) flight deals and tips

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

Best price found

£245

Fastest flight time

7h 56m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from London in the past 72 hours is £245. The best return flight deal from London to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is £379.
The fastest flight from London to Washington, D.C. Dulles Intl Airport takes 7h 56m
Direct flights go from London to Washington, D.C. Dulles Intl Airport every day.

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

    There are 3677.3 mi between London and Washington, D.C. Dulles Intl. Typically, this will take 7h 56m by plane in normal conditions.

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

    Prices for flights from London to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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


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

Compare and see reviews for airlines that fly from London to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
PLAYPriceFrom £263Free CancellationRating
7.1
91 reviews
Search PLAY flights
DeltaPriceFrom £338Free CancellationRating
8.0
8,604 reviews
Search Delta flights
IcelandairPriceFrom £372Free CancellationRating
7.1
509 reviews
Search Icelandair flights
TAP AIR PORTUGALPriceFrom £400Free CancellationRating
7.1
1,878 reviews
Search TAP AIR PORTUGAL flights
Brussels AirlinesPriceFrom £404Free CancellationRating
7.4
353 reviews
Search Brussels Airlines flights
Scandinavian AirlinesPriceFrom £416Free CancellationRating
7.3
1,308 reviews
Search Scandinavian Airlines flights
American AirlinesPriceFrom £419Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Air CanadaPriceFrom £432Free CancellationRating
7.0
8,391 reviews
Search Air Canada flights
Aer LingusPriceFrom £454Free CancellationRating
7.1
1,078 reviews
Search Aer Lingus flights
British AirwaysPriceFrom £457Free CancellationRating
6.6
6,817 reviews
Search British Airways flights
  • Delta Flights From London to Washington, D.C. Dulles Intl Airport

    The lowest priced Delta flight from London to Washington, D.C. Dulles Intl Airport from the last 72 hours was £428. Generally, Delta has 1 flight on this route every week with an average price of £842. Delta is rated 8.0/10 by our users.

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

    Across 1,349 KLM reviews on momondo, the average score is 7.8/10. KLM flies from London to Washington, D.C. Dulles Intl Airport about 1 time each week, with ticket deals ranging from £685 to £890. 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 London to Washington, D.C.?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Washington, D.C. . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from London with this policy.

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

Once you have performed a search for London to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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


An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organise 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?
tir. 24/12
tir. 31/12
Email me momondo's favourite deals

Find better results for your trip to Washington, D.C.