Cheap flights from Seattle to London from £240
Deals available from 900+ travel sites.
Flight information for Seattle to London
(SEA to LON)
Find info about flight duration, direct flights, and airports for your flight from Seattle to London
Best price found | £240 |
|---|---|
Fastest flight time | 9h 15m |
Direct flights | None |
Airports in London | 6 airports |
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?
February
The cheapest time of year to fly to London from Seattle is February. The most expensive is June.
What is the cheapest day to depart Seattle for London?
Tuesday
The cheapest day of the week is usually Tuesday. The most expensive is usually Wednesday.
When is the cheapest time to fly from Seattle to London?
in the morning
Seattle to London flights are approximately 18% more expensive in the evening than in the morning
What is the cheapest airline that flies to London from Seattle?
KLM
British Airways, Finnair, and Icelandair are the most popular carriers operating from Seattle to London
What is the cheapest Seattle to London flight route?
Seattle/Tacoma Intl - London Stansted
Fly from Seattle/Tacoma Intl to London Stansted for the best Seattle - London flight prices
How far in advance should you book Seattle to London flights?
26 days before
The cheapest time to buy a flight from Seattle to London is approximately 26 days to departure
When travelling from Seattle to London, the most popular airport to fly into is London Heathrow Airport. The majority of travellers flying into London Heathrow Airport from Seattle are departing from Seattle/Tacoma Intl Airport. If you are looking for alternate airports to fly into when travelling from Seattle, you can try flying into London Gatwick Airport (in London), London City Airport (in London, or London Luton Airport (in 15). The cheapest route from Seattle to London is SEA — STN with an average price of £523 RT during the month of July.
Easily compare return flights from Seattle to London
Below you can see the best fares for your return flight route over the next three 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 Icelandair and WestJet
Search last-minute flights to London from Seattle
Find and compare return 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
Virgin Atlantic Flights From Seattle to London
Virgin Atlantic flies from Seattle to London around 12 times per week, with 64 momondo users rating the airline 7.9/10. The cheapest Virgin Atlantic deal from Seattle to London in the last 72 hours was £744 (return), much lower than the average airfare cost of £1,000 for Virgin Atlantic flights on this route.
KLM Flights From Seattle to London
Another popular option for Seattle to London flights is KLM (7.7/10, 133 ratings). KLM flies from Seattle to London around 12 times per week, with deals starting from £488 return and rising to an average price of around £676.
Icelandair flights from Seattle to London
Our best Icelandair deals on Seattle to London flight tickets
Aer Lingus flights from Seattle to London
Our best Aer Lingus deals on Seattle to London flight tickets
Are airlines flying from Seattle/Tacoma Intl to London offering flexible cancellation due to COVID-19?
Due to the global impact of COVID-19, some of our airline partners operating flights from Seattle/Tacoma Intl to London, such as Virgin Atlantic, British Airways, and Icelandair may have flexible cancellation policies in place. Use our site to search for all of the airlines offering this flexibility to you.
How far is Seattle/Tacoma Intl to London by plane?
London is 4781.3 mi away from Seattle/Tacoma Intl. Typically, this will take 11h 40m by plane in normal conditions.
Alternative routes for Seattle to London
Compare alternative flights to and from nearby airports and cities to discover the best prices and most convenient flight times
Similar Seattle to London flights
Flexible with your destination? Broaden your search and find flights similar to your Seattle to London route
Flights to other cities in United Kingdom
Lost the lust for London? Check out some flights to other cities in United Kingdom
Why use momondo?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to London . Millions of users trust and use momondo every year so you are in good hands.
Flights from Seattle to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
Once all potential Seattle to London flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
Yes. momondo can track prices for Seattle to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.