LGW - IAD

$504 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 12/5. 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 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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Flight Deals

Cheap Flights from Gatwick to Dulles Intl (LGW-IAD)

 
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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Gatwick to Dulles Intl

Sun, Oct 26 - Sun, Nov 2
Multiple Airlines Logo
11:10 am - 8:30 pmLGW-IAD
13h 20m1 stop
Multiple Airlines Logo
5:05 pm - 9:15 amIAD-LGW
11h 10m1 stop
$540Multiple Airlines
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Sun, Oct 26 - Sun, Nov 2
Multiple Airlines Logo
1:30 pm - 8:30 pmLGW-IAD
11h 00m1 stop
Multiple Airlines Logo
5:05 pm - 12:45 pmIAD-LGW
14h 40m1 stop
$541Multiple Airlines
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Tue, Sep 30 - Tue, Oct 7
SWISS Logo
6:35 pm - 4:15 pmLGW-IAD
26h 40m1 stop
SWISS Logo
8:45 pm - 5:50 pmIAD-LGW
16h 05m1 stop
$543SWISS
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Wed, Oct 1 - Wed, Oct 15
SWISS Logo
6:35 pm - 4:15 pmLGW-IAD
26h 40m1 stop
SWISS Logo
8:45 pm - 5:55 pmIAD-LGW
16h 10m1 stop
$545SWISS
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Sat, Oct 4 - Sun, Oct 5
Icelandair Logo
3:40 pm - 10:10 pmLGW-IAD
11h 30m1 stop
Icelandair Logo
8:30 pm - 2:40 pmIAD-LGW
13h 10m1 stop
$546Icelandair
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Fri, Oct 3 - Sun, Oct 5
Icelandair Logo
3:40 pm - 10:10 pmLGW-IAD
11h 30m1 stop
Icelandair Logo
8:30 pm - 2:40 pmIAD-LGW
13h 10m1 stop
$547Icelandair
Find Deal
Thu, Oct 2 - Tue, Oct 7
Icelandair Logo
3:40 pm - 7:20 pmLGW-IAD
32h 40m1 stop
Icelandair Logo
8:30 pm - 2:40 pmIAD-LGW
13h 10m1 stop
$548Icelandair
Find Deal
Thu, Oct 2 - Tue, Oct 7
Icelandair Logo
3:40 pm - 7:20 pmLGW-IAD
32h 40m1 stop
Icelandair Logo
8:30 pm - 2:40 pmIAD-LGW
13h 10m1 stop
$549Icelandair
Find Deal
Thu, Oct 2 - Tue, Oct 7
Icelandair Logo
3:40 pm - 7:20 pmLGW-IAD
32h 40m1 stop
Icelandair Logo
8:30 pm - 2:40 pmIAD-LGW
13h 10m1 stop
$550Icelandair
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Mon, Dec 1 - Mon, Dec 8
TAP AIR PORTUGAL Logo
10:40 am - 2:35 pmLGW-IAD
32h 55m1 stop
TAP AIR PORTUGAL Logo
5:30 pm - 9:50 amIAD-LGW
11h 20m1 stop
$610TAP AIR PORTUGAL
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Everything you should know

When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 24% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$540
Overall average: $788
Multiple Airlines
Sun 10/26Sun 11/2
LGW - IAD • 1 stop
Cheapest one-way
$504
Multiple Airlines
Fri 12/5
LGW - IAD • 2 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Booking Insights

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 $555 (return) on average. On the other hand, the most expensive months are July and August, where the average cost of round-trip tickets is $1,031 and $968 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 2 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Find deals

Good to know

Low seasonApril
Cheapest flight$504
Best time to beat the crowds with an average 21% 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 $504 for a one-way ticket and $540 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?

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

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

    Star Alliance, and oneworld 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.

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

Information on your arrival and departure airports

London Gatwick Airport (LGW)
Dulles Intl (IAD)

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