$259 Cheap Flights from Washington (IAD) to London (LGW)

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Cheap Flights from Washington to London (IAD-LGW)

Prices were available within the past 7 days and start at $259 for one-way flights and $521 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
ITA Airways
Swiss International Air Lines
Lufthansa
Virgin Atlantic
ITA Airways
Icelandair
Swiss International Air Lines
Lufthansa
TAP Portugal
Flights from Washington (IAD) to London (LGW)
Origin airport
Washington Dulles Intl.
Destination airport
Gatwick
Airlines serving
Air France, American Airlines, British Airways, Delta, ITA Airways, Iberia, Icelandair, KLM, Lufthansa, Royal Air Maroc, Swiss International Air Lines, TAP Portugal, Turkish Airlines, Virgin Atlantic
Roundtrip price
$521
Distance
3685 mi

Washington to London Flights

Whether you’re looking for a grand adventure or just want to get away for a last-minute break, flights from Washington to London offer the perfect respite. Not only does exploring London provide the chance to make some magical memories, dip into delectable dishes, and tour the local landmarks, but the cheap airfare means you won’t bust your budget. So no matter whether your ideal itinerary involves flying one way, non-stop, or round trip, you’re bound to find flights that match your schedule on Expedia, and at prices that won’t shock your wallet.

Bagging a cheap flight from Washington to London may mean more dollars to spend on for one-of-a-kind souvenirs when you arrive, but it doesn’t mean you have to skimp on your travel experience, as Expedia offers a sizzling selection of cheap airlines that’ll put you in your happy place on their planes, whether that’s getting lost in a hair-raising airport thriller, dreaming on the passing landscape over a glass of bubbly, or jotting down your vacation bucket list at 38,000 feet. There’s also bound to be plenty of opportunities to snap a few photos of the high life that will make your friends green with envy. After all, enjoying the journey is part of the fun.

With so many affordable flights and so many wonderful adventures awaiting you, there’s no reason to put off booking a fantastic flight from to today. So don’t leave it to the last minute to make your dream trip a reality: pack your bags with your go-to travel accessories, put together your list of must-see attractions and can’t-miss activities, and get ready to broaden your horizons – with Expedia, the wonders of London are only a plane trip away. Book your travel arrangements with us today!

If you would like to book flights to London more flexibly many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to London is $259 now!

Frequently asked questions

How much is a one-way flight from Washington Dulles Intl. Airport (IAD) to Gatwick Airport (LGW)?
Book your next trip with Expedia and you could score one-way Washington flights to London from just $357. This was the cheapest fare found for this journey with a departure date in the next three months — an TAP Portugal flight, leaving from IAD on April 29 2024 and arriving at LGW. This price was last updated on March 26 2024 and has not changed since. Can’t wait to pick up your own bargain flights? Terrific offers are just a few clicks away.
How long does it take to fly from IAD to Gatwick Airport (LGW)?
Book a trip with Norse Atlantic UK and you’ll be traveling for approximately 7 hours and 20 minutes. This leading airline operates a direct flight that jets off at 8:25PM from Dulles Intl. Airport and lands at LGW at 8:45AM. Expedia has flight deals that’ll get you soaring, so take a look at what’s on offer on this route today.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to London Gatwick last minute?
Being the spontaneous type is a terrific way to travel the world, but it isn’t always the smartest method to track down a bargain fare. It’s better to book your Washington Dulles Intl. Airport (IAD) to Gatwick Airport (LGW) journey well in advance instead of waiting till the last minute. Based on flight pricing and demand studies in 2022, we have found that the best time to book domestic flights is between 28 – 35 days ahead of the departure date, and international flights three to four months in advance. You can unleash your spontaneous side when you get to your destination!
What is the cheapest airline flying from IAD to Gatwick Airport (LGW) in the next 90 days?
Based on airfares found on Expedia with a departure date within the next 90 days, TAP Portugal is the cheapest airline flying from Washington to London. The fare between these destinations starts from $357. This flight jets off from IAD on April 29 2024 and lands at Gatwick Airport (LGW). The price was last updated on March 26 2024 and has not changed since.
What's the cheapest price for a flight from Dulles Intl. Airport to Gatwick Airport (LGW) next month?
The lowest price for a one-way flight from Washington to London over the next month is $357. If you’re planning to travel soon, now’s the time to land this fare. This ticket price was found after searching all available flights on Expedia with a departure date within the next 30 days. This airfare is for a one-way TAP Portugal flight setting off from IAD on April 22 2024 and coming in to land at Gatwick Airport (LGW). The price was updated on March 26 2024 and has not changed since.
Can I find cheap nonstop flights from Dulles Intl. Airport to LGW in the next three months?
The cheapest price we can find for a roundtrip nonstop flight from Washington to London within the next 90 days is $2206. This figure is based on available flights on Expedia with a departure date in the next three months. This airfare is for a flight via Unknown and British Airways jetting off from Washington Dulles Intl. Airport (IAD) on April 21 2024 and landing at London Gatwick, with a return leg on May 3 2024. Pricing details were updated on March 26 2024.Take advantage of our handy filters to locate nonstop cheap flights from Dulles Intl. Airport to London Gatwick. Simply click on “Nonstop” under “Filter by” once your search results come up. Not set on flying on a specific day? You can also make use of the “Flexible dates” dropdown menu to compare prices for nearby dates. Finding a fare that best fits your budget and agenda couldn’t be simpler.
What airports do you fly into for Gatwick from Sterling?
With Gatwick Airport (LGW), Heathrow Airport (LHR) and London City Airport (LCY) to pick from, traveling from Sterling to Gatwick is a snap. The city’s main terminal, Gatwick Airport (LGW), is approximately 0.4 mi southeast of the center. Besides the price of fares, consider things like train or bus options from the airport and the distance to your hotel when choosing where to fly into. Get your Gatwick trip off to a terrific start by checking out K2 Crawley Leisure Center and Hawth Theatre.
What are the most popular departure times for flights from Dulles Intl. Airport to LGW?
The most popular departure times for journeys from Dulles Intl. Airport to Gatwick Airport (LGW) fall between 6:00 PM - 7:00 PM on Norse Atlantic UK. Our advice is to depart in the morning. The earlier you go, the greater your chances of a delay-free flight with less air traffic in the skies.
Can I change the date of my flight from Washington Dulles Intl. Airport (IAD) to Gatwick Airport (LGW)?
Plans can change, so Expedia is here to help make amending your flight as easy as possible. First, access your IAD to London Gatwick itinerary through the Expedia Trips portal and check the fare rules and restrictions about what changes you can make. If you purchased your fare in the last 24 hours, some carriers will let you cancel at no cost and book new flights. If you bought your fare more than 24 hours ago, get in touch with us through our Customer Service portal to run through your options.
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