Cheap flights from Washington, D.C. Dulles Intl Airport to the United Kingdom from $209

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 3/2. 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

Discover deals from 900+ travel sites with momondo.

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. Dulles Intl Airport to the United Kingdom

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:05 pm - 7:20 am
IAD
-
GLA
9h 15m
1 stop
Multiple Airlines Logo
8:25 am - 3:35 pm
GLA
-
IAD
12h 10m
1 stop
$459Multiple Airlines
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
7:40 pm - 4:40 pm
IAD
-
BHX
16h 00m
2 stops
Multiple Airlines Logo
7:45 am - 6:30 pm
BHX
-
IAD
15h 45m
2 stops
$461Multiple Airlines
Fri, Feb 6 - Mon, Feb 9
Icelandair Logo
7:40 pm - 9:55 am
IAD
-
GLA
9h 15m
1 stop
Icelandair Logo
12:35 pm - 6:30 pm
GLA
-
IAD
10h 55m
1 stop
$484Icelandair
Sun, Feb 15 - Mon, Mar 2
Icelandair Logo
7:40 pm - 9:55 am
IAD
-
GLA
9h 15m
1 stop
Icelandair Logo
12:35 pm - 6:30 pm
GLA
-
IAD
10h 55m
1 stop
$492Icelandair
Sat, Feb 14 - Sat, Feb 21
British Airways Logo
5:05 pm - 2:00 pm
IAD
-
MAN
15h 55m
2 stops
British Airways Logo
8:05 pm - 3:35 pm
MAN
-
IAD
24h 30m
2 stops
$546British Airways
Sun, Feb 15 - Mon, Feb 23
British Airways Logo
9:45 pm - 2:00 pm
IAD
-
MAN
11h 15m
1 stop
British Airways Logo
8:05 pm - 3:35 pm
MAN
-
IAD
24h 30m
2 stops
$548British Airways
Sun, Feb 15 - Mon, Feb 23
Delta Logo
6:50 pm - 5:50 pm
IAD
-
BHX
18h 00m
1 stop
Delta Logo
6:00 am - 7:09 pm
BHX
-
IAD
18h 09m
2 stops
$617Delta
Wed, Feb 25 - Wed, Mar 4
Delta Logo
7:00 am - 9:30 am
IAD
-
BHX
21h 30m
2 stops
Delta Logo
6:15 am - 4:05 pm
BHX
-
IAD
14h 50m
1 stop
$626Delta
Sun, Feb 8 - Sun, Feb 22
Virgin Atlantic Logo
7:52 pm - 5:05 pm
IAD
-
SOU
40h 13m
2 stops
Virgin Atlantic Logo
8:50 am - 8:45 pm
SOU
-
IAD
16h 55m
2 stops
$737Virgin Atlantic
Sun, Feb 15 - Tue, Mar 3
Virgin Atlantic Logo
7:52 pm - 5:05 pm
IAD
-
SOU
40h 13m
2 stops
Virgin Atlantic Logo
8:50 am - 4:05 pm
SOU
-
IAD
12h 15m
1 stop
$743Virgin Atlantic
Sun, Feb 15 - Tue, Mar 3

British Airways flights from Washington, D.C. Dulles Intl Airport to United Kingdom

Our best British Airways deals on Washington, D.C. Dulles Intl Airport to United Kingdom flight tickets
British Airways
Feb 10
IAD9:45 pmWashington, D.C. Dulles Intl
10h 20m
1 stop
GLA1:05 pmGlasgow Intl
Feb 17
GLA8:55 amGlasgow Intl
11h 40m
1 stop
IAD3:35 pmWashington, D.C. Dulles Intl
$544
British Airways
Feb 15
IAD5:05 pmWashington, D.C. Dulles Intl
15h 55m
2 stops
MAN2:00 pmManchester
Feb 23
MAN8:05 pmManchester
24h 30m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
$546
British Airways
Feb 15
IAD9:45 pmWashington, D.C. Dulles Intl
11h 15m
1 stop
MAN2:00 pmManchester
Feb 23
MAN8:05 pmManchester
24h 30m
2 stops
IAD3:35 pmWashington, D.C. Dulles Intl
$548

Air Canada flights from Washington, D.C. Dulles Intl Airport to United Kingdom

Our best Air Canada deals on Washington, D.C. Dulles Intl Airport to United Kingdom flight tickets
Air Canada
Jan 19
IAD9:45 amWashington, D.C. Dulles Intl
16h 25m
1 stop
LHR7:10 amLondon Heathrow
Jan 27
LHR9:00 amLondon Heathrow
16h 54m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$563
Air Canada
Jan 21
IAD12:43 pmWashington, D.C. Dulles Intl
15h 37m
1 stop
LHR9:20 amLondon Heathrow
Jan 27
LHR9:00 amLondon Heathrow
16h 54m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$580
Air Canada
Jan 27
IAD10:10 pmWashington, D.C. Dulles Intl
30h 10m
1 stop
LHR9:20 amLondon Heathrow
Feb 10
LHR6:00 amLondon Heathrow
19h 54m
2 stops
IAD8:54 pmWashington, D.C. Dulles Intl
$582

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 January 13, 2026.
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.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 2/10

5:05 pm-7:20 am

1 stop9h 15m

Glasgow Intl

Tue 2/17

8:25 am-3:35 pm

1 stop12h 10m

$459

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Fri 2/6

7:40 pm-4:40 pm

2 stops16h 00m

Birmingham

Mon 2/9

7:45 am-6:30 pm

2 stops15h 45m

$461

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 2/15

7:40 pm-9:55 am

1 stop9h 15m

Glasgow Intl

Mon 3/2

12:35 pm-6:30 pm

1 stop10h 55m

$484

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 2/14

7:40 pm-9:55 am

1 stop9h 15m

Glasgow Intl

Sat 2/21

12:35 pm-6:30 pm

1 stop10h 55m

$492

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Sun 2/15

5:05 pm-2:00 pm

2 stops15h 55m

Manchester

Mon 2/23

8:05 pm-3:35 pm

2 stops24h 30m

$546

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Sun 2/15

9:45 pm-2:00 pm

1 stop11h 15m

Manchester

Mon 2/23

8:05 pm-3:35 pm

2 stops24h 30m

$548

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Wed 2/25

6:50 pm-5:50 pm

1 stop18h 00m

Birmingham

Wed 3/4

6:00 am-7:09 pm

2 stops18h 09m

$617

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Sun 2/8

7:00 am-9:30 am

2 stops21h 30m

Birmingham

Sun 2/22

6:15 am-4:05 pm

1 stop14h 50m

$626

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/15

7:52 pm-5:05 pm

2 stops40h 13m

Southampton Eastleigh

Tue 3/3

8:50 am-8:45 pm

2 stops16h 55m

$737

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 2/15

7:52 pm-5:05 pm

2 stops40h 13m

Southampton Eastleigh

Tue 3/3

8:50 am-4:05 pm

1 stop12h 15m

$743

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, September 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 $623. If you aren’t able to travel to United Kingdom during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $640.

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 $757. The most expensive day to fly to United Kingdom is Saturday, with ticket prices averaging around $889.

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 afternoon. momondo users have found flights departing from Washington, D.C. Dulles Intl Airport to United Kingdom in the afternoon for as low as $808. 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 evening, with an average ticket price of $812. Departure times in the evening 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 $755 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 $711 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 39% 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

$390

Fastest flight time

7h 10m

Direct flights

Every day

Airports in United Kingdom

1,286 airports
The best one-way flight to United Kingdom from Washington, D.C. Dulles Intl Airport in the past 72 hours is $390. 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 $699.
The fastest flight from Washington, D.C. Dulles Intl Airport to United Kingdom takes 7h 10m
Direct flights go from Washington, D.C. Dulles Intl Airport to United Kingdom every day.
There are 1,286 airports in United Kingdom. From Washington, D.C. Dulles Intl Airport there are direct flights to London Heathrow (LHR), Edinburgh Turnhouse (EDI).
  • 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
7,711 reviews
Search Lufthansa flights
TAP AIR PORTUGALPriceFrom $395Free CancellationRating
7.1
2,119 reviews
Search TAP AIR PORTUGAL flights
IcelandairPriceFrom $418Free CancellationRating
7.1
596 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $424Free CancellationRating
7.3
1,649 reviews
Search Scandinavian Airlines flights
Air FrancePriceFrom $442Free CancellationRating
7.4
1,522 reviews
Search Air France flights
DeltaPriceFrom $516Free CancellationRating
7.9
8,039 reviews
Search Delta flights
Virgin AtlanticPriceFrom $536Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom $543Free CancellationRating
6.7
7,671 reviews
Search British Airways flights
Air CanadaPriceFrom $549Free CancellationRating
7.1
10,619 reviews
Search Air Canada flights
Aer LingusPriceFrom $558Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus 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.

An easier way to manage your United Kingdom 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
Thu 2/12
Thu 2/19

Find better results for your trip to the United Kingdom

Popular cities in the United Kingdom

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