Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Dulles Intl Airport to the United Kingdom from £155

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 9/2. 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.

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.
Search flight deals

Find the cheapest flights from Washington, D.C. Dulles Intl Airport to the United Kingdom

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
19:40 - 13:10
IAD
-
BHX
12h 30m
2 stops
Multiple Airlines Logo
07:40 - 18:30
BHX
-
IAD
15h 50m
2 stops
£335Multiple Airlines
Tue, 24 Feb - Tue, 3 Mar
Multiple Airlines Logo
17:05 - 07:20
IAD
-
GLA
9h 15m
1 stop
Multiple Airlines Logo
08:25 - 15:35
GLA
-
IAD
12h 10m
1 stop
£341Multiple Airlines
Tue, 10 Feb - Tue, 17 Feb
Multiple Airlines Logo
19:40 - 16:40
IAD
-
BHX
16h 00m
2 stops
Multiple Airlines Logo
07:45 - 18:30
BHX
-
IAD
15h 45m
2 stops
£343Multiple Airlines
Fri, 6 Feb - Mon, 9 Feb
Icelandair Logo
19:40 - 09:55
IAD
-
GLA
9h 15m
1 stop
Icelandair Logo
12:35 - 18:30
GLA
-
IAD
10h 55m
1 stop
£360Icelandair
Sun, 15 Feb - Mon, 2 Mar
Icelandair Logo
19:40 - 09:55
IAD
-
GLA
9h 15m
1 stop
Icelandair Logo
12:35 - 18:30
GLA
-
IAD
10h 55m
1 stop
£366Icelandair
Sat, 14 Feb - Sat, 21 Feb
British Airways Logo
17:05 - 14:00
IAD
-
MAN
15h 55m
2 stops
British Airways Logo
20:05 - 15:35
MAN
-
IAD
24h 30m
2 stops
£406British Airways
Sun, 15 Feb - Mon, 23 Feb
British Airways Logo
21:45 - 14:00
IAD
-
MAN
11h 15m
1 stop
British Airways Logo
20:05 - 15:35
MAN
-
IAD
24h 30m
2 stops
£407British Airways
Sun, 15 Feb - Mon, 23 Feb
Aer Lingus Logo
17:05 - 07:50
IAD
-
EDI
9h 45m
1 stop
Aer Lingus Logo
09:35 - 15:35
EDI
-
IAD
11h 00m
1 stop
£412Aer Lingus
Tue, 17 Feb - Tue, 24 Feb
Virgin Atlantic Logo
19:52 - 17:05
IAD
-
SOU
40h 13m
2 stops
Virgin Atlantic Logo
08:50 - 20:45
SOU
-
IAD
16h 55m
2 stops
£548Virgin Atlantic
Sun, 15 Feb - Tue, 3 Mar
Virgin Atlantic Logo
19:52 - 17:05
IAD
-
SOU
40h 13m
2 stops
Virgin Atlantic Logo
08:50 - 16:05
SOU
-
IAD
12h 15m
1 stop
£552Virgin Atlantic
Sun, 15 Feb - Tue, 3 Mar

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
19 Jan
IAD09:45Washington, D.C. Dulles Intl
16h 25m
1 stop
LHR07:10London Heathrow
27 Jan
LHR09:00London Heathrow
16h 54m
2 stops
IAD20:54Washington, D.C. Dulles Intl
£418
Air Canada
21 Jan
IAD17:10Washington, D.C. Dulles Intl
11h 10m
1 stop
LHR09:20London Heathrow
28 Jan
LHR09:00London Heathrow
16h 54m
2 stops
IAD20:54Washington, D.C. Dulles Intl
£431
Air Canada
20 Jan
IAD09:45Washington, D.C. Dulles Intl
16h 25m
1 stop
LHR07:10London Heathrow
4 Feb
LHR09:00London Heathrow
16h 54m
2 stops
IAD20:54Washington, D.C. Dulles Intl
£433

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to United Kingdom flight tickets
United Airlines
21 Jan
IAD18:05Washington, D.C. Dulles Intl
7h 35m
LHR06:40London Heathrow
26 Jan
LHR13:45London Heathrow
31h 55m
1 stop
IAD16:40Washington, D.C. Dulles Intl
£429
United Airlines
20 Jan
IAD18:05Washington, D.C. Dulles Intl
7h 35m
LHR06:40London Heathrow
27 Jan
LHR09:05London Heathrow
34h 35m
1 stop
IAD14:40Washington, D.C. Dulles Intl
£430
United Airlines
21 Jan
IAD08:20Washington, D.C. Dulles Intl
17h 50m
2 stops
LHR07:10London Heathrow
26 Jan
LHR13:45London Heathrow
31h 55m
1 stop
IAD16:40Washington, D.C. Dulles Intl
£434

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 13 January 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.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Tue 24/2

19:40-13:10

2 stops12h 30m

Birmingham

Tue 3/3

07:40-18:30

2 stops15h 50m

£335

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Tue 10/2

17:05-07:20

1 stop9h 15m

Glasgow Intl

Tue 17/2

08:25-15:35

1 stop12h 10m

£341

Washington, D.C.Birmingham

IAD - BHX

IADBHX

Washington, D.C. Dulles Intl

Fri 6/2

19:40-16:40

2 stops16h 00m

Birmingham

Mon 9/2

07:45-18:30

2 stops15h 45m

£343

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sun 15/2

19:40-09:55

1 stop9h 15m

Glasgow Intl

Mon 2/3

12:35-18:30

1 stop10h 55m

£360

Washington, D.C.Glasgow

IAD - GLA

IADGLA

Washington, D.C. Dulles Intl

Sat 14/2

19:40-09:55

1 stop9h 15m

Glasgow Intl

Sat 21/2

12:35-18:30

1 stop10h 55m

£366

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Sun 15/2

17:05-14:00

2 stops15h 55m

Manchester

Mon 23/2

20:05-15:35

2 stops24h 30m

£406

Washington, D.C.Manchester

IAD - MAN

IADMAN

Washington, D.C. Dulles Intl

Sun 15/2

21:45-14:00

1 stop11h 15m

Manchester

Mon 23/2

20:05-15:35

2 stops24h 30m

£407

Washington, D.C.Edinburgh

IAD - EDI

IADEDI

Washington, D.C. Dulles Intl

Tue 17/2

17:05-07:50

1 stop9h 45m

Edinburgh Turnhouse

Tue 24/2

09:35-15:35

1 stop11h 00m

£412

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 15/2

19:52-17:05

2 stops40h 13m

Southampton Eastleigh

Tue 3/3

08:50-20:45

2 stops16h 55m

£548

Washington, D.C.Southampton

IAD - SOU

IADSOU

Washington, D.C. Dulles Intl

Sun 15/2

19:52-17:05

2 stops40h 13m

Southampton Eastleigh

Tue 3/3

08:50-16:05

1 stop12h 15m

£552

Flights are sorted by cheapest return 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?

The cheapest month to fly to United Kingdom from Washington, D.C. Dulles Intl Airport is in September. Flight prices, which tend to average around £463, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of September, then departing from Washington, D.C. Dulles Intl Airport during the month October is also very affordable. Most momondo users find prices during this month for around £476.

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. Travellers who choose to depart for United Kingdom on a Wednesday will often find tickets for as low as £526. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Washington, D.C. Dulles Intl Airport to United Kingdom for around £609.

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

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £554. Try not to purchase tickets in the evening because they tend to be around £571. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 £561 when searching weeks before you fly. 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 £528 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 38% 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

£335

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 £335. The best return flight deal from Washington, D.C. Dulles Intl Airport to United Kingdom found on momondo in the last 72 hours is £492.
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).
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?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to United Kingdom.

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

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted 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 £308Free CancellationRating
6.8
7,709 reviews
Search Lufthansa flights
IcelandairPriceFrom £359Free CancellationRating
7.1
596 reviews
Search Icelandair flights
Virgin AtlanticPriceFrom £381Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
British AirwaysPriceFrom £385Free CancellationRating
6.7
7,669 reviews
Search British Airways flights
Air FrancePriceFrom £396Free CancellationRating
7.4
1,522 reviews
Search Air France flights
Aer LingusPriceFrom £441Free CancellationRating
7.2
1,435 reviews
Search Aer Lingus flights
IberiaPriceFrom £456Free CancellationRating
7.0
3,084 reviews
Search Iberia flights
United AirlinesPriceFrom £492Free CancellationRating
7.4
9,152 reviews
Search United Airlines flights
KLMPriceFrom £570Free CancellationRating
7.7
1,437 reviews
Search KLM flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to United Kingdom from Washington, D.C..

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?

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

An easier way to manage your United Kingdom 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 12/2
Thu 19/2
By creating a price alert you accept our terms of use and privacy policy.

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
Flights to Londonfrom £29
Flights to Manchesterfrom £33
Flights to Birminghamfrom £33
Flights to Edinburghfrom £30
Flights to Belfastfrom £29
Flights to Glasgowfrom £30
Flights to Bristolfrom £31
Flights to Newcastle upon Tynefrom £31
Flights to Liverpoolfrom £30
Flights to Aberdeenfrom £36
Flights to Leedsfrom £61
Flights to Invernessfrom £33