Cheap flights from London Gatwick Airport to Washington, D.C. from £230
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Gatwick Airport to Washington, D.C. departing on 11/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Discover deals from 900+ travel sites with momondo.
Save money when you book flights with momondo
Big names, great deals
Big names, great deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customise your results.Trusted and free
Trusted and free
We’re completely free to use - no hidden charges or fees.Price Alerts
Price Alerts
Not ready to book? to track prices.Find the cheapest flights from London Gatwick Airport to Washington, D.C.
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
TAP AIR PORTUGAL flights from London Gatwick Airport to Washington, D.C.
Our best TAP AIR PORTUGAL deals on London Gatwick Airport to Washington, D.C. flight tickets
Icelandair flights from London Gatwick Airport to Washington, D.C.
Our best Icelandair deals on London Gatwick Airport to Washington, D.C. flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from London Gatwick Airport to Washington, D.C.
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Washington, D.C.?
The cheapest month to fly to Washington, D.C. from London Gatwick Airport is in March. Flight prices, which tend to average around £424, are often lower during this time because this is during the off-season. If you don’t want to visit Washington, D.C. in March, then you should wait until January to fly from London Gatwick Airport, when ticket prices are also cheap, with an average price of £430.
What is the cheapest day to depart on your flight to Washington, D.C.?
On average, the least expensive day to fly to Washington, D.C. from London Gatwick Airport is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as £610. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from London Gatwick Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £683.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the evening is the cheapest time of day to fly from London Gatwick Airport to Washington, D.C. when you can find flight prices for as low as £500. Flying to Washington, D.C. in the evening is an ideal time because this is during off-peak travel hours. Flights to Washington, D.C. are more costly in the afternoon, with an average ticket price of £635. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.
How far in advance should I book a flight to Washington, D.C.?
You are more likely to see cheaper flights to Washington, D.C. from London Gatwick Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around £538 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from London Gatwick Airport for as low as £353 on momondo.
When to book flights from London Gatwick Airport to Washington, D.C.
Cheap London Gatwick Airport to Washington, D.C. (LGW to WAS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Gatwick Airport to Washington, D.C.
Best price found | £230 |
|---|---|
Fastest flight time | 11h 20m |
Direct flights | None |
Airports in Washington, D.C. | 3 airports |
How far is London Gatwick to Washington, D.C. by plane?
The distance between London Gatwick and Washington, D.C. is about 3667.7 mi. By plane, this route typically takes 11h 20m.
When did momondo last update prices for flights from London Gatwick Airport to Washington, D.C.?
Prices for flights from London Gatwick Airport to Washington, D.C. were last updated today.
How many operators does momondo search for flights from London Gatwick Airport to Washington, D.C.?
As of July 2025, there are 2 operators available to choose from for flights from London Gatwick Airport to Washington, D.C..
How old do you have to be to fly from London Gatwick Airport to Washington, D.C.?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Gatwick Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C.. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from London Gatwick Airport to Washington, D.C.?
momondo data reveals that the most frequently booked airline on the route from London Gatwick Airport to Washington, D.C. is Icelandair, representing 84% of all bookings. The subsequent popular airline is British Airways at 16%.
Best airlines flying from London Gatwick Airport to Washington, D.C.
Compare and see reviews for airlines that fly from London Gatwick Airport to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £349 | Free Cancellation | Rating 7.0 514 reviews | |||
| PriceFrom £373 | Free Cancellation | Rating 7.3 2,920 reviews |
Travelling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from London to Washington, D.C.?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Washington, D.C. for you.
Can I find flights from London to Washington, D.C. with flexible booking policies on momondo?
Yes. All flights to Washington, D.C. from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from London to Washington, D.C.?
momondo helps you find the best flight between London and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.
I’m not ready to book a flight from London to Washington, D.C. right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of London to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.