LGW - IAD

$326 Find Cheap Flights from London Gatwick Airport to Washington Dulles 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 Gatwick to Dulles Intl departing on 5/29. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Gatwick to Dulles Intl 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.

Recent round-trip flight deals from Gatwick to Dulles Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Gatwick to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
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8:35 pm - 7:20 pmLGW-IAD
27h 45m2 stops
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8:30 pm - 3:10 pmIAD-LGW
13h 40m2 stops
$550
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Tue, May 20 - Tue, May 27
Logo
10:00 am - 6:30 pmLGW-IAD
13h 30m1 stop
Logo
9:57 pm - 6:55 amIAD-LGW
27h 58m1 stop
$558
Find Deal
Thu, Jun 12 - Sun, Jun 22
TAP AIR PORTUGAL Logo
10:35 am - 8:50 pmLGW-IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
6:30 pm - 9:50 amIAD-LGW
11h 20m1 stop
$668TAP AIR PORTUGAL
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Thu, Oct 23 - Mon, Oct 27
Icelandair Logo
3:40 pm - 10:10 pmLGW-IAD
11h 30m1 stop
Icelandair Logo
8:30 pm - 2:40 pmIAD-LGW
13h 10m1 stop
$670Icelandair
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Fri, Sep 19 - Sun, Sep 28
Icelandair Logo
1:00 pm - 7:20 pmLGW-IAD
11h 20m1 stop
Icelandair Logo
8:30 pm - 11:45 amIAD-LGW
10h 15m1 stop
$679Icelandair
Find Deal
Thu, May 15 - Mon, May 26
TAP AIR PORTUGAL Logo
10:35 am - 8:50 pmLGW-IAD
15h 15m1 stop
TAP AIR PORTUGAL Logo
10:20 pm - 3:35 pmIAD-LGW
12h 15m1 stop
$703TAP AIR PORTUGAL
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Mon, Sep 8 - Mon, Oct 6
SWISS Logo
6:35 pm - 4:15 pmLGW-IAD
26h 40m1 stop
SWISS Logo
8:45 pm - 5:50 pmIAD-LGW
16h 05m1 stop
$797SWISS
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Tue, May 13 - Sun, May 18
Turkish Airlines Logo
5:30 am - 7:45 pmLGW-IAD
19h 15m1 stop
Turkish Airlines Logo
1:30 pm - 9:55 amIAD-LGW
15h 25m1 stop
$805Turkish Airlines
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Tue, Jun 3 - Thu, Jul 3
SWISS Logo
6:40 pm - 3:15 pmLGW-IAD
25h 35m1 stop
SWISS Logo
5:45 pm - 5:50 pmIAD-LGW
19h 05m1 stop
$812SWISS
Find Deal
Thu, May 15 - Thu, May 22
Turkish Airlines Logo
5:15 pm - 11:45 amLGW-IAD
23h 30m1 stop
Turkish Airlines Logo
1:30 pm - 4:15 pmIAD-LGW
21h 45m1 stop
$817Turkish Airlines
Find Deal
Tue, May 13 - Sun, May 18
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KAYAK's insights & trends for Gatwick to Dulles Intl flights

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

What is the cheapest month to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport is February, where tickets cost $561 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $1,003 and $966 respectively.

How far in advance should I book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

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Good to know

Low seasonApril
High seasonMay
Cheapest flight$326
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from London Gatwick Airport to Washington Dulles Airport

When to book flights from Gatwick to Dulles Intl

Are your dates flexible? Find out the best times to travel from Gatwick to Dulles Intl 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 London Gatwick Airport to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport was $326 for a one-way ticket and $550 for a round-trip.

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

    Yes, you’ll need a passport to travel to Washington Dulles Airport from London Gatwick Airport.

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

    The Boeing 777 is the aircraft model that flies most regularly on the London Gatwick Airport to Washington Dulles Airport flight route.

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

    Star Alliance, and SkyTeam are the airline alliances operating flights between London Gatwick Airport and Washington Dulles Airport, with Star Alliance being the most commonly used for this route.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington Dulles Airport from London Gatwick 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 London Gatwick Airport to Washington Dulles 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 Washington Dulles Airport with an airline and back to London Gatwick Airport with another airline. Booking your flights between London Gatwick Airport and IAD 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 London Gatwick Airport to Washington Dulles 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 Washington Dulles Airport from London Gatwick Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $668 or less one-way.

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

Information on your arrival and departure airports

Dulles Intl (IAD)
London Gatwick Airport (LGW)

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