IAD - STN

$278 Find Cheap Flights from Washington Dulles Airport to London Stansted Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Stansted departing on 8/17. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to London Stansted Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to London, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Dulles Intl to Stansted (IAD-STN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Stansted that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Stansted

Tue, Sep 16 - Tue, Sep 23
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10:20 pm - 12:10 amIAD-STN
20h 50m2 stops
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6:20 am - 8:50 pmSTN-IAD
19h 30m2 stops
Thu, Sep 18 - Tue, Sep 23
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5:50 pm - 11:20 pmIAD-STN
24h 30m2 stops
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6:20 am - 8:50 pmSTN-IAD
19h 30m2 stops
Mon, Sep 22 - Tue, Oct 7
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10:20 pm - 12:10 amIAD-STN
20h 50m2 stops
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6:20 am - 8:50 pmSTN-IAD
19h 30m2 stops
Sun, Sep 14 - Mon, Sep 22
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5:45 pm - 11:20 pmIAD-STN
24h 35m2 stops
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5:50 pm - 8:50 pmSTN-IAD
32h 00m2 stops
Tue, Sep 9 - Wed, Sep 17
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10:20 pm - 8:35 pmIAD-STN
17h 15m2 stops
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9:05 pm - 8:50 pmSTN-IAD
28h 45m2 stops
Mon, Aug 11 - Tue, Aug 26
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10:20 pm - 12:10 amIAD-STN
20h 50m2 stops
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6:20 am - 8:50 pmSTN-IAD
19h 30m2 stops
Thu, Sep 4 - Mon, Sep 15
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10:20 pm - 11:20 pmIAD-STN
20h 00m2 stops
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5:50 pm - 3:20 pmSTN-IAD
26h 30m2 stops
Thu, Sep 25 - Fri, Oct 10
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10:20 pm - 11:20 pmIAD-STN
20h 00m2 stops
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1:25 pm - 8:05 pmSTN-IAD
35h 40m2 stops
Thu, Sep 11 - Thu, Sep 18
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10:20 pm - 10:25 pmIAD-STN
19h 05m2 stops
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9:20 am - 3:20 pmSTN-IAD
35h 00m2 stops
Tue, Sep 2 - Wed, Sep 10
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5:00 pm - 12:10 amIAD-STN
26h 10m2 stops
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6:40 pm - 3:20 pmSTN-IAD
25h 40m2 stops
Useful Info

KAYAK's insights & trends for Dulles Intl to Stansted flights

Get data-powered insights and trends into flights from Dulles Intl to Stansted to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Washington Dulles Airport to London Stansted Airport?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to London Stansted Airport clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to London Stansted Airport on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Washington Dulles Airport to London Stansted Airport. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

Good to know

Low seasonFebruary
High seasonJune
Cheapest flight$278
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from Washington Dulles Airport to London Stansted Airport

When to book flights from Dulles Intl to Stansted

Are your dates flexible? Find out the best times to travel from Dulles Intl to Stansted based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to London Stansted Airport flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to London Stansted Airport?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to London Stansted Airport was $278 for a one-way ticket and $495 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and London Stansted Airport?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Washington Dulles Airport and on arrival in London Stansted Airport.

  • Which airports will I be using when flying from Washington Dulles Airport to London Stansted Airport?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at London Stansted Airport, also known as London Stansted.

  • Which aircraft models fly most regularly from Washington Dulles Airport to London Stansted Airport?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to London Stansted Airport?

    Star Alliance is the only airline alliance operating flights between Washington Dulles Airport and London Stansted Airport.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to London Stansted Airport?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to London Stansted Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to London Stansted Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Stansted Airport from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to London Stansted Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London Stansted Airport with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and STN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to London Stansted Airport?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Stansted Airport from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Dulles Intl to Stansted

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Stansted? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.0
PLAYOverall score based on 102 reviews
5.5Food
7.3Boarding
4.7Entertainment
6.5Comfort
8.0Crew
Airline reviews

For a no frills flight this was surprising comfortable. The crew were helpful and nice. The flight was smooth and there were no delays or issues which I haven't had on a flight in a long time. I would definitely fly with them again.

8.0 ExcellentRachel, Mar 2025KEF - BWI
Read more PLAY reviews

For a no frills flight this was surprising comfortable. The crew were helpful and nice. The flight was smooth and there were no delays or issues which I haven't had on a flight in a long time. I would definitely fly with them again.

The flight was canceled by play less than 24 hours prior to the trip, and I was unable to re-book. Have not received a refund for the trip despite filling out the appropriate form.

Was was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. It has been three weeks without a refund or an answer

Have not recieved full refund for my flight, which was cancelled less than 24 hours prior to my scheduled departure by PLAY. Despite my attempts to rebook my travel, I encountered significant cost increases that rendered this option unfeasible. In accordance with EC Regulation 261/2004, airlines are required to issue a full refund for cancelled flights within seven days of the scheduled departure if a refund is requested instead of rebooking on another flight. This request was completed three weeks ago an answer or refund.

It would have been better to have USB charging ports available on the longer haul Flight that one of 2 hours

Was very good Staff was great. No tv monitors tho. So long flights make it longer

The worst. No free beverages. No entertainment on an overseas flight. Not enough space. Never again.

Play is affordable! Only way we fly from the states to Europe. Left late but arrived on time

have screens on backs of chairs...offer free snacks and water

Boarding and crew was great. Flight was cold, need layers. Deplaning was hard. We had to take stairs off the plane and I was separated from my travel companion because we were not seated together and they would not let him wait for me to get off so we were forced onto different shuttles.

Everything you need to know for your flight from Dulles Intl to Stansted

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