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Cheap flights from Washington, D.C. Dulles Intl Airport to the United Kingdom from $208

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. Dulles Intl Airport to the United Kingdom departing on 1/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:40 pm - 10:45 amIAD-MAN
10h 05m1 stop
Icelandair Logo
11:55 am - 6:30 pmMAN-IAD
11h 35m1 stop
$479Icelandair
Find Deal
Sun, Nov 9 - Fri, Nov 14
Icelandair Logo
7:40 pm - 10:45 amIAD-MAN
10h 05m1 stop
Icelandair Logo
11:55 am - 6:30 pmMAN-IAD
11h 35m1 stop
$481Icelandair
Find Deal
Tue, Feb 24 - Sun, Mar 1
Aer Lingus Logo
5:05 pm - 8:05 amIAD-LHR
10h 00m1 stop
Aer Lingus Logo
7:50 am - 3:35 pmLHR-IAD
12h 45m1 stop
$556Aer Lingus
Find Deal
Wed, Nov 19 - Thu, Nov 27
Aer Lingus Logo
5:05 pm - 9:05 amIAD-LHR
11h 00m1 stop
Aer Lingus Logo
12:10 pm - 7:30 pmLHR-IAD
12h 20m1 stop
$560Aer Lingus
Find Deal
Tue, Nov 11 - Thu, Nov 13
Virgin Atlantic Logo
5:03 pm - 8:45 amIAD-LHR
10h 42m1 stop
Virgin Atlantic Logo
4:50 pm - 8:30 pmLHR-IAD
8h 40mnonstop
$589Virgin Atlantic
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Wed, Nov 19 - Thu, Nov 27
British Airways Logo
6:20 pm - 9:00 amIAD-MAN
9h 40m1 stop
British Airways Logo
7:50 am - 3:35 pmMAN-IAD
12h 45m1 stop
$603British Airways
Find Deal
Wed, Nov 12 - Mon, Nov 24
British Airways Logo
6:20 pm - 9:30 amIAD-GLA
10h 10m1 stop
British Airways Logo
7:35 am - 3:35 pmGLA-IAD
13h 00m1 stop
$612British Airways
Find Deal
Thu, Dec 4 - Mon, Dec 8
Virgin Atlantic Logo
7:05 pm - 4:35 pmIAD-GLA
17h 30m1 stop
Virgin Atlantic Logo
5:20 pm - 5:05 pmGLA-IAD
27h 45m1 stop
$613Virgin Atlantic
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Tue, Mar 10 - Sat, Mar 21
United Airlines Logo
6:00 pm - 12:35 pmIAD-BHX
13h 35m1 stop
United Airlines Logo
6:00 am - 3:50 pmBHX-IAD
14h 50m1 stop
$656United Airlines
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Thu, Nov 27 - Thu, Dec 4
United Airlines Logo
5:15 pm - 12:35 pmIAD-BHX
14h 20m1 stop
United Airlines Logo
1:20 pm - 3:50 pmBHX-IAD
31h 30m1 stop
$675United Airlines
Find Deal
Sat, Nov 8 - Mon, Nov 17

Scandinavian Airlines flights from Washington, D.C. Dulles Intl Airport to United Kingdom

Our best Scandinavian Airlines deals on Washington, D.C. Dulles Intl Airport to United Kingdom flight tickets
Scandinavian Airlines
Jan 28
IAD8:30 pmWashington, D.C. Dulles Intl
17h 00m
1 stop
LHR6:30 pmLondon Heathrow
Feb 3
LHR5:30 pmLondon Heathrow
28h 45m
2 stops
IAD5:15 pmWashington, D.C. Dulles Intl
$552
Find similar
Scandinavian Airlines
Mar 17
IAD12:30 pmWashington, D.C. Dulles Intl
16h 50m
2 stops
LHR9:20 amLondon Heathrow
Mar 24
LHR7:30 pmLondon Heathrow
26h 45m
1 stop
IAD6:15 pmWashington, D.C. Dulles Intl
$553
Find similar
Scandinavian Airlines
Mar 11
IAD9:30 pmWashington, D.C. Dulles Intl
14h 55m
2 stops
LHR4:25 pmLondon Heathrow
Mar 16
LHR10:20 amLondon Heathrow
11h 55m
1 stop
IAD6:15 pmWashington, D.C. Dulles Intl
$558
Find similar

Aer Lingus flights from Washington, D.C. Dulles Intl Airport to United Kingdom

Our best Aer Lingus deals on Washington, D.C. Dulles Intl Airport to United Kingdom flight tickets
Aer Lingus
Oct 26
IAD6:05 pmWashington, D.C. Dulles Intl
10h 00m
1 stop
LHR8:05 amLondon Heathrow
Nov 4
LHR12:10 pmLondon Heathrow
12h 20m
1 stop
IAD7:30 pmWashington, D.C. Dulles Intl
$554
Find similar
Aer Lingus
Nov 19
IAD5:05 pmWashington, D.C. Dulles Intl
10h 00m
1 stop
LHR8:05 amLondon Heathrow
Nov 27
LHR7:50 amLondon Heathrow
12h 45m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$556
Find similar
Aer Lingus
Oct 21
IAD5:20 pmWashington, D.C. Dulles Intl
9h 40m
1 stop
LHR8:00 amLondon Heathrow
Oct 29
LHR7:50 amLondon Heathrow
12h 45m
1 stop
IAD4:35 pmWashington, D.C. Dulles Intl
$557
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 14, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Sun 11/9

7:40 pm-10:45 am

1 stop10h 05m

Manchester

Fri 11/14

11:55 am-6:30 pm

1 stop11h 35m

$479

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Tue 2/24

7:40 pm-10:45 am

1 stop10h 05m

Manchester

Sun 3/1

11:55 am-6:30 pm

1 stop11h 35m

$481

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/19

5:05 pm-8:05 am

1 stop10h 00m

London Heathrow

Thu 11/27

7:50 am-3:35 pm

1 stop12h 45m

$556

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Tue 11/11

5:05 pm-9:05 am

1 stop11h 00m

London Heathrow

Thu 11/13

12:10 pm-7:30 pm

1 stop12h 20m

$560

Washington, D.C.London

IAD - LHR

IADLHR

Washington, D.C. Dulles Intl

Wed 11/19

5:03 pm-8:45 am

1 stop10h 42m

London Heathrow

Thu 11/27

4:50 pm-8:30 pm

Nonstop8h 40m

$589

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Wed 11/12

6:20 pm-9:00 am

1 stop9h 40m

Manchester

Mon 11/24

7:50 am-3:35 pm

1 stop12h 45m

$603

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Thu 12/4

6:20 pm-9:30 am

1 stop10h 10m

Glasgow Intl

Mon 12/8

7:35 am-3:35 pm

1 stop13h 00m

$612

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 3/10

7:05 pm-4:35 pm

1 stop17h 30m

Glasgow Intl

Sat 3/21

5:20 pm-5:05 pm

1 stop27h 45m

$613

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Thu 11/27

6:00 pm-12:35 pm

1 stop13h 35m

Birmingham

Thu 12/4

6:00 am-3:50 pm

1 stop14h 50m

$656

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Sat 11/8

5:15 pm-12:35 pm

1 stop14h 20m

Birmingham

Mon 11/17

1:20 pm-3:50 pm

1 stop31h 30m

$675

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to the United Kingdom from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to United Kingdom

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 United Kingdom?

In general, October is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to United Kingdom. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $627. If you aren’t able to travel to United Kingdom during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $631.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from Washington, D.C. Dulles Intl Airport to United Kingdom is on a Wednesday when prices can be found for as low as $766. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $904.

What is the cheapest time of day to depart on your flight to United Kingdom?

According to our data, the cheapest time of day to fly to United Kingdom is in the evening. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to United Kingdom in the evening for as low as $812. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to United Kingdom are more costly in the afternoon, with an average ticket price of $822. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight to United Kingdom?

You are more likely to see cheaper flights to United Kingdom from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around $759 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from Washington, D.C. Dulles Intl Airport for as low as $705 on momondo.

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

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

You could potentially save up to 63% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to United Kingdom flight.

Cheap Washington, D.C. Dulles Intl Airport to United Kingdom flight deals and tips

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

Best Price Found

$384

Fastest flight time

7h 05m

Direct flights

Every day

Airports in United Kingdom

2 airports
The best one-way flight to United Kingdom from Washington, D.C. Dulles Intl Airport in the past 72 hours is $384. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to United Kingdom found on momondo in the last 72 hours is $678.
The fastest flight from Washington, D.C. Dulles Intl Airport to United Kingdom takes 7h 05m
Direct flights go from Washington, D.C. Dulles Intl Airport to United Kingdom every day.
There are 2 airports near United Kingdom: London Heathrow (LHR), Edinburgh Turnhouse (EDI)
Search flight deals

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to United Kingdom refresh daily.

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

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

    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 Washington, D.C. Dulles Intl Airport to United Kingdom.

  • What documentation or ID do you need to fly to United Kingdom?

    The required travel and health documents for your United Kingdom 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 United Kingdom. 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. Dulles Intl Airport to United Kingdom?

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to United Kingdom with momondo
Airline
Rating
Free Cancellation
Price
LufthansaPriceFrom $311Free CancellationRating
6.8
7,487 reviews
Search Lufthansa flights
PLAYPriceFrom $372Free CancellationRating
7.0
103 reviews
Search PLAY flights
TAP AIR PORTUGALPriceFrom $395Free CancellationRating
7.1
2,015 reviews
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesPriceFrom $424Free CancellationRating
7.4
1,532 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $433Free CancellationRating
7.0
556 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom $536Free CancellationRating
7.4
667 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $547Free CancellationRating
6.7
7,456 reviews
Search British Airways flights
Air CanadaPriceFrom $549Free CancellationRating
7.1
10,294 reviews
Search Air Canada flights
DeltaPriceFrom $560Free CancellationRating
7.9
7,972 reviews
Search Delta flights
United AirlinesPriceFrom $563Free CancellationRating
7.4
8,974 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to United Kingdom. momondo saves you time and could save you money on your trip.

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

All flight searches from Washington, D.C. to United Kingdom on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and United Kingdom by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Washington, D.C. to United Kingdom flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to Londonfrom $315
Flights to Manchesterfrom $365
Flights to Edinburghfrom $409
Flights to Glasgowfrom $399
Flights to Birminghamfrom $406
Flights to Newcastle upon Tynefrom $468
Flights to Belfastfrom $532
Flights to Bristolfrom $470
Flights to Invernessfrom $414
Flights to Liverpoolfrom $437
Flights to Aberdeenfrom $521
Flights to Leedsfrom $447