Cheap flights from London to Seattle from $254
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 Seattle departing on 9/24. 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 and deals
Big names and deals
Search 100s of travel sites to compare prices.Filter for what you want
Filter for what you want
Free Wi-Fi? Stopover? Instantly customize 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? Create a price alert to track prices.Easily compare round-trip flights from London to Seattle
Below you can see the best fares for your round-trip flight route over the next six months. All fares were found on momondo this week. Browse the quickest and cheapest flights from London to Seattle by changing tabs
Find the cheapest one-way flights from London to Seattle
If you're looking for one-way flights from London to Seattle, view some of our deals below provided by British Airways, Iberia and Icelandair
Search last-minute flights to Seattle from London
Find and compare round-trip flight prices for your last-minute flight from London to Seattle
Best airlines flying from London to Seattle
Compare and see reviews for airlines that fly from London to Seattle with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $505 | Free Cancellation | Rating 7.1 1,345 reviews | |||
| PriceFrom $531 | Free Cancellation | Rating 7.3 14,889 reviews | |||
| PriceFrom $532 | Free Cancellation | Rating 6.8 6,915 reviews | |||
| PriceFrom $537 | Free Cancellation | Rating 7.7 746 reviews | |||
| PriceFrom $563 | Free Cancellation | Rating 8.0 10,966 reviews | |||
| PriceFrom $588 | Free Cancellation | Rating 7.4 11,228 reviews | |||
| PriceFrom $611 | Free Cancellation | Rating 7.7 1,385 reviews | |||
| PriceFrom $617 | Free Cancellation | Rating 7.1 2,768 reviews | |||
| PriceFrom $670 | Free Cancellation | Rating 7.2 1,349 reviews |
Delta Flights From London to Seattle
Across 14 Delta flights from London to Seattle this week, the average price was $767, with the best Delta deals starting from $563 round-trip. 10,966 users have rated Delta on momondo, with an average score of 8.0/10.
Virgin Atlantic Flights From London to Seattle
Virgin Atlantic is also a popular choice for this route. Virgin Atlantic flight deals for London to Seattle start from as low as $537 round-trip, depending on your selected dates, with average Virgin Atlantic deals seen on momondo around $780. Virgin Atlantic operates 14 flights to Seattle from London in an average week. Users have rated it 7.7/10 across 746 reviews.
American Airlines flights from London to Seattle
Our best American Airlines deals on London to Seattle flight tickets
Icelandair flights from London to Seattle
Our best Icelandair deals on London to Seattle flight tickets
How to get the cheapest flight ticket from London to Seattle
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 from London to Seattle?
February. The cheapest time of year to fly to Seattle from London is February. Most expensive is July
What is the cheapest day to depart London for Seattle?
Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Saturday
When is the cheapest time to fly from London to Seattle?
At noon. London to Seattle flights are approximately 5% more expensive in the afternoon than at noon
What is the cheapest airline that flies to Seattle from London?
United Airlines. American Airlines, Delta, and Finnair are the most popular carriers operating from London to Seattle
What is the cheapest London to Seattle flight route?
London Heathrow - Seattle/Tacoma Intl. Fly from London Heathrow to Seattle/Tacoma Intl for the best London - Seattle flight prices
How far in advance should you book London to Seattle flights?
48 days before. The cheapest time to buy a flight from London to Seattle is approximately 48 days to departure
How many flights depart from London to Seattle on average per day?
The number of flights available between London and Seattle is 21 per day as of April 2024. The most frequent departure time is 11:00AM, with 58% of daily flights leaving in the afternoon.
How many flights depart from London to Seattle on average per week?
As of April 2024, 149 flights take off from London and land in Seattle each week. The most common flight departure day for this route is Saturday, with 17% of weekly flights taking off on this day.
What cabin class options are available on London to Seattle flights?
There are 2 cabin classes available to choose from on London to Seattle 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 London to Seattle flights?
You could potentially save up to 4% on your flight if you consider stops on a London to Seattle flight.
Cheap London to Seattle (LON to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London to Seattle
Best Price Found | $254 |
|---|---|
Fastest flight time | 9h 45m |
Direct flights | Tue, Wed, Thu, Fri, Sat and Sun |
Airports in Seattle | 1 airport |
How far is London to Seattle/Tacoma Intl by plane?
The straight-line distance from London to Seattle/Tacoma Intl is 4781.3 mi. Flights usually cover this in 9h 45m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from London to Seattle/Tacoma Intl Airport?
Prices for flights from London to Seattle/Tacoma Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from London to Seattle/Tacoma Intl Airport?
There are 9 operators available for flights from London to Seattle/Tacoma Intl Airport as of April 2024.
How old do you have to be to fly from London to Seattle/Tacoma Intl Airport?
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 Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents you'll need for your trip to Seattle/Tacoma Intl 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 Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
Why use momondo?
Why should I use momondo to find a flight deal from London to Seattle?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from London to Seattle. momondo saves you time and could save you money on your trip.
Can I find flights from London to Seattle with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for London to Seattle flights to just show those with flexible booking policies.
How can momondo help me find flights from London to Seattle?
momondo provides multiple filters to help you find the best flight to Seattle from London. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from London to Seattle right now. Can momondo alert me if prices change?
If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from London and alert you when they change.