Skyscanner

Cheap flights from Washington Dulles to London Gatwick

Travellers and cabin class

Compare Washington Dulles to London Gatwick flight deals

Find the cheapest month or even day of the year to fly to London Gatwick

Book the best London Gatwick fare with no extra fees

Flight deals from Washington Dulles to London Gatwick

Looking for a cheap last-minute deal or the best return flight from Washington Dulles to London Gatwick? Find the lowest prices on one-way and return tickets right here.
London.P30,808 per passenger.Departing Tue, 12 Aug, returning Fri, 22 Aug.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Washington Dulles on Tue, 12 Aug, arriving in London Gatwick.Inbound indirect flight with Virgin Atlantic, departs from London Gatwick on Fri, 22 Aug, arriving in Washington Dulles.Price includes taxes and charges.From P30,808, select.
London.P30,808 per passenger.Departing Mon, 18 Aug, returning Thu, 4 Sep.Return flight with Virgin Atlantic.Outbound indirect flight with Virgin Atlantic, departs from Washington Dulles on Mon, 18 Aug, arriving in London Gatwick.Inbound indirect flight with Virgin Atlantic, departs from London Gatwick on Thu, 4 Sep, arriving in Washington Dulles.Price includes taxes and charges.From P30,808, select.
London.P31,184 per passenger.Departing Tue, 2 Dec, returning Sun, 7 Dec.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Tue, 2 Dec, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Sun, 7 Dec, arriving in Washington Dulles.Price includes taxes and charges.From P31,184, select.
London.P31,184 per passenger.Departing Fri, 3 Oct, returning Sun, 12 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Fri, 3 Oct, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Sun, 12 Oct, arriving in Washington Dulles.Price includes taxes and charges.From P31,184, select.
London.P31,184 per passenger.Departing Wed, 18 Feb, returning Tue, 24 Feb.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 18 Feb, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Tue, 24 Feb, arriving in Washington Dulles.Price includes taxes and charges.From P31,184, select.
London.P31,184 per passenger.Departing Thu, 6 Nov, returning Tue, 11 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Thu, 6 Nov, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Tue, 11 Nov, arriving in Washington Dulles.Price includes taxes and charges.From P31,184, select.
London.P31,217 per passenger.Departing Wed, 29 Oct, returning Wed, 5 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Wed, 29 Oct, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Wed, 5 Nov, arriving in Washington Dulles.Price includes taxes and charges.From P31,217, select.
London.P31,217 per passenger.Departing Fri, 9 Jan, returning Mon, 12 Jan.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Washington Dulles on Fri, 9 Jan, arriving in London Gatwick.Inbound indirect flight with Icelandair, departs from London Gatwick on Mon, 12 Jan, arriving in Washington Dulles.Price includes taxes and charges.From P31,217, select.

Find the cheapest month to fly from Washington Dulles to London Gatwick

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to London Gatwick flights are currently cheapest in August.
May
from P45,309
Jun
from P40,339
Jul
from P33,854
Aug
from P30,808
Sep
from P31,914
Oct
from P31,184
Nov
from P31,184
Dec
from P31,184
Jan
from P31,217
Feb
from P31,184
Mar
from P36,011
Apr
from P38,953

Washington Dulles to London Gatwick: Alternative routes

Compare routes from Washington Dulles to London below. You may find an airport to fly into that's cheaper, faster, or easier than London Gatwick.

Washington D.C. to London: Flight information

The things to know before you go.
Cheapest flight foundP30,808
Cheapest month to flyAugust

Finding cheap flights from Washington Dulles to London Gatwick: Frequently asked questions

The best price we found for a return flight from Washington Dulles to London Gatwick is P30,893. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Washington Dulles to London Gatwick. But we found flights with one or more stops from P30,808.
As of May 2025, there are no flights flying from Washington Dulles to London Gatwick.
The cheapest month to fly from Washington Dulles to London Gatwick is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to London Gatwick Airport on Tuesday, 12 August 2025.
No airlines currently offer direct flights between Washington Dulles Airport and London Gatwick Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London Gatwick but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Virgin Atlantic offers the cheapest flight tickets to London Gatwick.

Travelling from Washington Dulles International Airport (IAD) to London Gatwick Airport (LGW): what you need to know

  • London's timezone is UTC+0, which makes London four hours ahead of Washington DC.

  • Give yourself plenty of time to make your IAD to LGW flight. A good rule of thumb is to arrive two hours before international departures and an hour ahead for domestic flights.

  • You'll likely experience longer lines in popular months like April. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a good idea.

  • We make it a cinch to book a flight with a stopover. To see all your options for tickets from Washington Dulles International Airport to London Gatwick Airport, deselect 'Direct flights only.' Then, pick a flight with a stop long enough to tour your chosen city. Worthwhile stopovers between IAD and LGW include:

    • Dublin Airport

    • Amsterdam Airport Schiphol

    • John F. Kennedy International Airport

How to find the cheapest flights from Washington Dulles International Airport (IAD) to London Gatwick Airport (LGW)

  • The lowest price we've seen for a one-way Washington Dulles International Airport to London Gatwick Airport flight is P12,230. A return ticket is currently P30,808. Depending on the availability when you book, these fares could change.

  • It's a good idea to book as early as possible if you're hoping to get cheap tickets from IAD to LGW. That's because flight prices are based on demand, which tends to rise closer to departure.

  • The 'Whole month' search tool shows you the cheapest flights from Washington Dulles International Airport to London Gatwick Airport throughout the month. It's a great way to snap up a bargain if your travel plans aren't set in stone.

  • Finding cheap flights from IAD to LGW couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll get in touch when a new deal comes up.

  • Secure the ideal flight for you with the help of the filters. To see the 'Best,' 'Fastest' or 'Cheapest' flights from Washington Dulles International Airport to London Gatwick Airport, use the 'Sort by' tool. You can also filter by departure and arrival times, airline, and journey duration.

Handy information about Washington Dulles International Airport (IAD)

  • You'll find IAD at 1 Saarinen Circle.

  • Of all flights departing from Washington Dulles International Airport, 74.39% land on time at their destination.

  • Central Washington DC to Washington Dulles International Airport is around 56 kilometres. Depending on traffic, it'll take about 50 minutes to get there if you're driving, catching a cab or ride-sharing.

  • Planning to catch public transport? Expect a trip time of around 3 hours 25 minutes.

  • Get your travels off to a leisurely start by staying near IAD. Whether you're catching an early flight from Washington Dulles International Airport to London Gatwick Airport or want to avoid feeling rushed, these stays are perfect:

Arriving at London Gatwick Airport (LGW)

Getting from London Gatwick Airport (LGW) to central London

  • London Gatwick Airport to central London has a drive time of around 1 hour 20 minutes. It's approximately 80 kilometres away.

  • When travelling on public transport, expect a journey of roughly 1 hour 25 minutes.

When to fly to London Gatwick Airport (LGW)

  • August is the most popular month for flights from Washington Dulles International Airport to London Gatwick Airport. For a quieter experience, go to London in January.

  • The warmest month in London is July, with the temperature ranging between 11ºC (52ºF) and 26ºC (79ºF). Book your flights from Washington Dulles International Airport to London Gatwick Airport in this month if this is the type of weather you like.

  • Look for cheap tickets from IAD to LGW in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 0ºC (32ºF) and 9ºC (48ºF) on average.

Explore more of United Kingdom

  • You've visited London, now it's time to explore other corners of United Kingdom. Journey around 161 kilometres north-west to Birmingham to check off its popular sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, your itinerary will be busy.

  • Bristol is another favourite destination in United Kingdom and is around 177 kilometres west of London. No trip is complete without seeing Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park.

Plan the rest of your trip from Washington D.C. to London

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.