Cheap flights from Seattle to London from $248
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to London 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.
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 Seattle to London
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 Seattle to London by changing tabs
Find the cheapest one-way flights from Seattle to London
If you're looking for one-way flights from Seattle to London, view some of our deals below provided by British Airways, Delta and Icelandair
Search last-minute flights to London from Seattle
Find and compare round-trip flight prices for your last-minute flight from Seattle to London
Best airlines flying from Seattle to London
Compare and see reviews for airlines that fly from Seattle to London with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $402 | Free Cancellation | Rating 7.0 7,738 reviews | |||
| PriceFrom $514 | Free Cancellation | Rating 7.1 1,341 reviews | |||
| PriceFrom $526 | Free Cancellation | Rating 7.2 1,348 reviews | |||
| PriceFrom $572 | Free Cancellation | Rating 7.7 1,380 reviews | |||
| PriceFrom $575 | Free Cancellation | Rating 7.4 11,221 reviews | |||
| PriceFrom $583 | Free Cancellation | Rating 7.1 2,760 reviews | |||
| PriceFrom $586 | Free Cancellation | Rating 7.5 1,806 reviews | |||
| PriceFrom $604 | Free Cancellation | Rating 7.0 6,875 reviews | |||
| PriceFrom $606 | Free Cancellation | Rating 7.3 14,844 reviews | |||
| PriceFrom $632 | Free Cancellation | Rating 6.8 6,896 reviews |
Alaska Airlines Flights From Seattle to London
Alaska Airlines flight deals from Seattle to London start from $905 round-trip. Over the 7 Alaska Airlines flights for this route in a normal week, average airfare is usually $1,255 round-trip - but some users have found much cheaper deals with momondo.
Delta Flights From Seattle to London
Across 10,932 Delta reviews on momondo, the average score is 8.0/10. Delta flies from Seattle to London about 14 times each week, with ticket deals ranging from $637 to $986. Price data is based on momondo searches in the last 72 hours.
British Airways flights from Seattle to London
Our best British Airways deals on Seattle to London flight tickets
Lufthansa flights from Seattle to London
Our best Lufthansa deals on Seattle to London flight tickets
How to get the cheapest flight ticket from Seattle to London
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 Seattle to London?
January. The cheapest time of year to fly to London from Seattle is January. Most expensive is June
What is the cheapest day to depart Seattle for London?
Tuesday. The cheapest day of the week is typically Tuesday. The most expensive is typically Saturday
When is the cheapest time to fly from Seattle to London?
In the afternoon. Seattle to London flights are approximately 16% more expensive in the morning than in the afternoon
What is the cheapest airline that flies to London from Seattle?
Lufthansa. Aer Lingus, Air France, and Iberia are the most popular carriers operating from Seattle to London
What is the cheapest Seattle to London flight route?
Seattle/Tacoma Intl - London Gatwick. Fly from Seattle/Tacoma Intl to London Gatwick for the best Seattle - London flight prices
How far in advance should you book Seattle to London flights?
58 days before. The cheapest time to buy a flight from Seattle to London is approximately 58 days to departure
How many flights depart from Seattle to London on average per day?
As of April 2024, 19 flights take off from Seattle and land in London each day. The most common flight departure time for this route is 6:00PM, with 60% of daily flights taking off in the evening.
How many flights depart from Seattle to London on average per week?
135 flights are operational weekly from Seattle to London as of April 2024. The most popular departure day for this route is Sunday, with 15% of flights per week taking off on this day.
What cabin class options are available on Seattle to London flights?
There are 3 cabin classes available to choose from on Seattle to London 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 Seattle to London flights?
You could potentially save up to 13% on your flight if you consider stops on a Seattle to London flight.
Cheap Seattle to London (SEA to LON) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to London
Best Price Found | $248 |
|---|---|
Fastest flight time | 9h 20m |
Direct flights | Mon, Tue, Wed, Thu, Fri and Sun |
Airports in London | 5 airports |
How far is Seattle/Tacoma Intl to London by plane?
London is 4781.3 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 9h 20m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London?
Prices for flights from Seattle/Tacoma Intl Airport to London are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to London?
The number of operators available for flights from Seattle/Tacoma Intl Airport to London is 16 as of April 2024.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London?
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 Seattle/Tacoma Intl Airport to London.
What documentation or ID do you need to fly to London?
The travel and health documents you'll need for your trip to London 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. 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 Seattle to London?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to London. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to London with flexible booking policies on momondo?
Yes. All flights to London from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from Seattle to London?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to London.
I’m not ready to book a flight from Seattle to London right now. Can momondo alert me if prices change?
If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Seattle and alert you when they change.