Cheap flights from Washington, D.C. to London Heathrow Airport from £151
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to London Heathrow Airport departing on 10/2. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
Deals available from 900+ travel sites.
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 Washington, D.C. to London
Cheap return flights
Cheap one-way flights
Cheap last-minute flights
Cheap direct flights
Cheap bus & train deals from Washington, D.C. to London
All round-trip flight deals to London
Icelandair flights from Washington, D.C. to London Heathrow Airport
Our best Icelandair deals on Washington, D.C. to London Heathrow Airport flight tickets
TAP AIR PORTUGAL flights from Washington, D.C. to London Heathrow Airport
Our best TAP AIR PORTUGAL deals on Washington, D.C. to London Heathrow Airport flight tickets
See travel insights to London from
How to get the cheapest flight ticket from Washington, D.C. to London Heathrow Airport
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 London Heathrow Airport?
In general, October is the cheapest month to fly from Washington, D.C. to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £527. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from Washington, D.C. averaging around £528.
What is the cheapest day to depart on your flight to London Heathrow Airport?
On average, the least expensive day to fly to London Heathrow Airport from Washington, D.C. is on a Saturday. momondo users have found tickets for Saturday departures for as low as £558. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Sunday is £684.
What is the cheapest time of day to depart on your flight to London Heathrow Airport?
According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from Washington, D.C. to London Heathrow Airport at midday for as low as £0. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £621 on average. Flights to London Heathrow Airport from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.
What is the cheapest Washington, D.C. to London Heathrow flight route?
Fly from Baltimore/Washington to London Heathrow for the best Washington, D.C. - London Heathrow flight prices
How far in advance should I book a flight to London Heathrow Airport?
Most flyers found that booking tickets 30 days in advance of their planned departure date is the best time to get cheap flights to London Heathrow Airport. During this timeframe, flight prices are around £620. However, in the past 72 hours, people saw flights from Washington, D.C. for as low as £438.
What cabin class options are available on Washington, D.C. to London Heathrow flights?
There are 4 cabin classes available to choose from on Washington, D.C. to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Washington, D.C. to London Heathrow Airport flights?
You could potentially save up to 45% on your flight if you consider stops on a Washington, D.C. to London Heathrow Airport flight.
How have Washington, D.C. to London Heathrow Airport flight prices changed over time?
As of December 2024, prices for Washington, D.C. to London Heathrow Airport flights are approximately 22% cheaper when compared to flights at the same time last year.
How many flights depart from Washington, D.C. to London Heathrow Airport on average per day?
27 flights are operational daily from Washington, D.C. to London Heathrow Airport as of December 2024. The most popular departure time for this route is 18:00, with 100% of flights per day taking off in the evening.
How many flights depart from Washington, D.C. to London Heathrow Airport on average per week?
193 flights are operational weekly from Washington, D.C. to London Heathrow Airport as of December 2024. The most popular departure day for this route is Wed, with 17% of flights per week taking off on this day.
When to book flights from Washington, D.C. to London Heathrow Airport
Cheap Washington, D.C. to London Heathrow Airport (WAS to LHR) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to London Heathrow Airport
How far is Washington, D.C. to London Heathrow by plane?
There are 3649.4 mi between Washington, D.C. and London Heathrow. By plane, this route typically takes 7h 10m.
When did momondo last update prices for flights from Washington, D.C. to London Heathrow Airport?
Prices for flights from Washington, D.C. to London Heathrow Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to London Heathrow Airport?
As of December 2024, there are 9 operators available to choose from for flights from Washington, D.C. to London Heathrow Airport.
How old do you have to be to fly from Washington, D.C. to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport 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 London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to London Heathrow Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Washington, D.C. to London Heathrow Airport is Boeing 777 (40.11% of total bookings). The next most popular plane models are Airbus A350-1000 (15.33%), Airbus A380-800 (7.83%), and Boeing 787-9 Dreamliner (7.40%).
What is the most popular airline from Washington, D.C. to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to London Heathrow Airport is Virgin Atlantic, representing 29% of all bookings. The subsequent popular airlines are British Airways at 26%, Lufthansa at 19%, and Icelandair at 15%.
Best airlines flying from Washington, D.C. to London Heathrow Airport
Compare and see reviews for airlines that fly from Washington, D.C. to London Heathrow Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom £328 | Free Cancellation | Rating 7.1 1,078 reviews | |||
| PriceFrom £378 | Free Cancellation | Rating 7.1 509 reviews | |||
| PriceFrom £450 | Free Cancellation | Rating 6.6 6,817 reviews | |||
| PriceFrom £460 | Free Cancellation | Rating 7.5 668 reviews | |||
| PriceFrom £464 | Free Cancellation | Rating 7.4 1,505 reviews | |||
| PriceFrom £467 | Free Cancellation | Rating 7.4 9,048 reviews | |||
| PriceFrom £472 | Free Cancellation | Rating 7.0 2,655 reviews | |||
| PriceFrom £490 | Free Cancellation | Rating 7.8 1,349 reviews | |||
| PriceFrom £507 | Free Cancellation | Rating 6.8 7,087 reviews |
KLM Flights From Washington, D.C. to London Heathrow Airport
The lowest priced KLM flight from Washington, D.C. to London Heathrow Airport from the last 72 hours was £621. Generally, KLM has 1 flight on this route every week with an average price of £727. KLM is rated 7.8/10 by our users.
Virgin Atlantic Flights From Washington, D.C. to London Heathrow Airport
Across 668 Virgin Atlantic reviews on momondo, the average score is 7.5/10. Virgin Atlantic flies from Washington, D.C. to London Heathrow Airport about 1 time each week, with ticket deals ranging from £583 to £767. Price data is based on momondo searches in the last 72 hours.
Why use momondo?
Why should I use momondo to find a flight deal from Washington, D.C. to London?
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 Washington, D.C. to London for you.
Can I find flights from Washington, D.C. to London with flexible booking policies on momondo?
momondo does allow users to show only those flights to London from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from Washington, D.C. to London?
Once you have performed a search for Washington, D.C. to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Washington, D.C. to London right now. Can momondo alert me if prices change?
Yes momondo offers price alerts on flights to London from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.