Cheap flights from London to Washington from $288
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 to Washington departing on 10/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from London to State of Washington
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 State of Washington?
The month of January is, on average, the cheapest month to fly to State of Washington from London, with most prices found around $632. If you aren’t able to travel to State of Washington during the month of January, then flying in March is also cheap. Prices for this month can be found on momondo for an average of $657.
What is the cheapest day to depart on your flight to State of Washington?
The cheapest day to depart from London to State of Washington is on a Wednesday. Travelers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as $789. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from London to State of Washington for around $1,189.
What is the cheapest time of day to depart on your flight to State of Washington?
The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $845. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $943 on average. Flights to State of Washington from London in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest London to Washington flight route?
Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Washington flight prices
How far in advance should I book a flight to State of Washington?
You are more likely to see cheaper flights to State of Washington from London when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $778 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from London for as low as $699 on momondo.
What cabin class options are available on London to Washington flights?
There are 4 cabin classes available to choose from on London to Washington flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
How many flights depart from London to State of Washington on average per day?
The number of flights available between London and State of Washington is 26 per day as of July 2025. The most frequent departure time is 4:00PM, with 70% of daily flights leaving in the afternoon.
How many flights depart from London to State of Washington on average per week?
The number of flights available between London and State of Washington is 187 per week as of July 2025. The most frequent departure day is Mon, with 16% of weekly flights leaving on this day.
Cheap London to State of Washington flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to State of Washington
Best Price Found | $288 |
|---|---|
Fastest flight time | 9h 55m |
Direct flights | Every day |
Airports in State of Washington | 3 airports |
When did momondo last update prices for flights from London to Washington?
Prices for flights from London to Washington refresh daily.
How many operators does momondo search for flights from London to Washington?
As of July 2025, there are 7 operators available to choose from for flights from London to Washington.
How old do you have to be to fly from London to Washington?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from London to State of Washington?
Based on momondo bookings for flights between London and State of Washington, the leading plane model is Airbus A330-900neo, making up 25.70% of the total bookings. Other popular models include Boeing 787-10 Dreamliner with 24.14%, Boeing 777-300ER with 15.69%, and Boeing 787-9 Dreamliner with 9.90%.
Best airlines flying from London to State of Washington
Compare and see reviews for airlines that fly from London to State of Washington with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $418 | Free Cancellation | Rating 7.0 514 reviews | |||
| PriceFrom $560 | Free Cancellation | Rating 6.6 7,086 reviews | |||
| PriceFrom $575 | Free Cancellation | Rating 7.0 2,816 reviews | |||
| PriceFrom $594 | Free Cancellation | Rating 7.4 654 reviews | |||
| PriceFrom $620 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $632 | Free Cancellation | Rating 8.0 7,973 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from London to Washington?
It is quick and easy to find London to Washington flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington that suits you.
Can I find flights from London to Washington with flexible booking policies on momondo?
momondo does allow users to show only those flights to Washington from London which offer a flexible booking policy as well as other useful filters and features.
How can momondo help me find flights from London to Washington?
Once you have performed a search for London to Washington 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 London to Washington right now. Can momondo alert me if prices change?
Price alerts on flights to Washington from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.