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Cheap flights from Washington, D.C. Dulles Intl Airport to London 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 Washington, D.C. Dulles Intl Airport to London departing on 11/10. 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 London

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 pm - 11:10 pmIAD-STN
24h 10m2 stops
Multiple Airlines Logo
7:30 am - 8:05 pmSTN-IAD
17h 35m2 stops
$560Multiple Airlines
Find Deal
mar., nov. 4 - vie., nov. 14
Multiple Airlines Logo
9:45 am - 11:15 pmIAD-STN
32h 30m3 stops
Multiple Airlines Logo
6:20 am - 8:05 pmSTN-IAD
18h 45m2 stops
$561Multiple Airlines
Find Deal
mié., nov. 12 - mié., nov. 19
Multiple Airlines Logo
8:30 pm - 11:10 pmIAD-STN
21h 40m2 stops
Multiple Airlines Logo
8:05 am - 8:05 pmSTN-IAD
17h 00m2 stops
$562Multiple Airlines
Find Deal
mar., nov. 18 - mié., nov. 26
Multiple Airlines Logo
8:30 pm - 11:25 pmIAD-STN
21h 55m2 stops
Multiple Airlines Logo
6:45 am - 8:05 pmSTN-IAD
18h 20m2 stops
$563Multiple Airlines
Find Deal
sáb., nov. 15 - sáb., nov. 22
Multiple Airlines Logo
7:40 pm - 11:40 pmIAD-STN
23h 00m2 stops
Multiple Airlines Logo
4:10 pm - 6:30 pmSTN-IAD
31h 20m2 stops
$564Multiple Airlines
Find Deal
jue., nov. 13 - mar., nov. 18
Multiple Airlines Logo
7:40 pm - 11:10 pmIAD-STN
22h 30m2 stops
Multiple Airlines Logo
4:10 pm - 6:30 pmSTN-IAD
31h 20m2 stops
$565Multiple Airlines
Find Deal
sáb., ene. 10 - mar., ene. 13
Multiple Airlines Logo
9:00 am - 6:00 pmIAD-STN
28h 00m3 stops
Multiple Airlines Logo
12:00 pm - 4:40 pmSTN-IAD
33h 40m2 stops
$566Multiple Airlines
Find Deal
mié., nov. 26 - lun., dic. 1
Multiple Airlines Logo
4:30 pm - 11:25 pmIAD-STN
25h 55m3 stops
Multiple Airlines Logo
6:00 am - 8:05 pmSTN-IAD
19h 05m2 stops
$567Multiple Airlines
Find Deal
jue., nov. 13 - dom., nov. 23
Multiple Airlines Logo
9:45 am - 8:30 pmIAD-STN
29h 45m3 stops
Multiple Airlines Logo
8:30 am - 8:59 pmSTN-IAD
17h 29m2 stops
$568Multiple Airlines
Find Deal
mar., nov. 25 - jue., dic. 11
Multiple Airlines Logo
7:40 pm - 11:40 pmIAD-STN
23h 00m2 stops
Multiple Airlines Logo
2:15 pm - 6:30 pmSTN-IAD
33h 15m2 stops
$569Multiple Airlines
Find Deal
jue., ene. 8 - dom., ene. 11

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport 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 octubre 16, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mar. 11/4

6:00 pm-11:10 pm

2 stops24h 10m

London Stansted

vie. 11/14

7:30 am-8:05 pm

2 stops17h 35m

$560

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mié. 11/12

9:45 am-11:15 pm

3 stops32h 30m

London Stansted

mié. 11/19

6:20 am-8:05 pm

2 stops18h 45m

$561

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mar. 11/18

8:30 pm-11:10 pm

2 stops21h 40m

London Stansted

mié. 11/26

8:05 am-8:05 pm

2 stops17h 00m

$562

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

sáb. 11/15

8:30 pm-11:25 pm

2 stops21h 55m

London Stansted

sáb. 11/22

6:45 am-8:05 pm

2 stops18h 20m

$563

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

jue. 11/13

7:40 pm-11:40 pm

2 stops23h 00m

London Stansted

mar. 11/18

4:10 pm-6:30 pm

2 stops31h 20m

$564

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

sáb. 1/10

7:40 pm-11:10 pm

2 stops22h 30m

London Stansted

mar. 1/13

4:10 pm-6:30 pm

2 stops31h 20m

$565

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mié. 11/26

9:00 am-6:00 pm

3 stops28h 00m

London Stansted

lun. 12/1

12:00 pm-4:40 pm

2 stops33h 40m

$566

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

jue. 11/13

4:30 pm-11:25 pm

3 stops25h 55m

London Stansted

dom. 11/23

6:00 am-8:05 pm

2 stops19h 05m

$567

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

mar. 11/25

9:45 am-8:30 pm

3 stops29h 45m

London Stansted

jue. 12/11

8:30 am-8:59 pm

2 stops17h 29m

$568

Washington, D.C.London

IAD - STN

IADSTN

Washington, D.C. Dulles Intl

jue. 1/8

7:40 pm-11:40 pm

2 stops23h 00m

London Stansted

dom. 1/11

2:15 pm-6:30 pm

2 stops33h 15m

$569

Flights are sorted by cheapest round-trip flights first.

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See travel insights to London from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to London Stansted 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 day to depart on your flight to London Stansted Airport?

The cheapest day to depart on your flight to London Stansted Airport is on a Tuesday when prices can be found for as low as $457. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Washington, D.C. Dulles Intl Airport because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $631.

What is the cheapest time of day to depart on your flight to London Stansted Airport?

Our most recent data shows that the best time of day to fly to London Stansted Airport is in the afternoon. Flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport during this time can be as low as $509. In contrast, the most expensive time of day to depart to London Stansted Airport is in the evening when prices are around $513.

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

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

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

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

Direct flights

None
There are no direct flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport. There are no popular flight routes from Washington, D.C. Dulles Intl Airport to London Stansted Airport.
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  • How far is Washington, D.C. Dulles Intl to London Stansted by plane?

    The distance between Washington, D.C. Dulles Intl and London Stansted is about 3683.3 mi. Typically, this will take 12h 40m by plane in normal conditions.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport are updated daily.

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

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

    The required travel and health documents for your London Stansted 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 Stansted Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near London?

Book flights to London if you plan to visit one of these locations
Gatwick
Hounslow
Milton Keynes
Luton
Dover
Slough
Guildford
Dartford
Crawley
Hayes
Brentwood
Chelmsford
Colchester
Folkestone
Romford
Ilford
Cobham
Wembley
Stansted
Watford

Why use momondo?

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

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 London from Washington, D.C..

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

All flight searches from Washington, D.C. to London 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 London?

Once all potential Washington, D.C. to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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 simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Washington, D.C. and alert you when they change.

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