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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 three 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, Finnair and Iberia
Search last-minute flights to Seattle from London
Find and compare round-trip flight prices for your last-minute flight from London to Seattle
SWISS flights from London to Seattle
Our best SWISS deals on London to Seattle flight tickets
KLM flights from London to Seattle
Our best KLM 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. The 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 Wednesday
When is the cheapest time to fly from London to Seattle?
At noon. London to Seattle flights are approximately 7% more expensive in the afternoon than at noon
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?
As of April 2024, 21 flights take off from London and land in Seattle each day. The most common flight departure time for this route is 11:00a.m., with 51% of daily flights taking off at noon.
How many flights depart from London to Seattle on average per week?
149 flights are operational weekly from London to Seattle as of April 2024. The most popular departure day for this route is Saturday, with 17% of flights per week taking off on this day.
Can stopping save me money on London to Seattle flights?
No. A direct flight is the cheapest option for a flight between London to Seattle.
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 | C$ 885 |
|---|---|
Fastest flight time | 9h 45m |
Direct flights | Every day |
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 7694.7 km. In terms of flight time, this usually takes a little over 9h 45m.
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 refresh daily.
How old do you have to be to fly from London to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
Why use momondo?
Why should I use momondo to find a flight deal from London to Seattle?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from London to Seattle . Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from London to Seattle with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Seattle from London with this policy.
How can momondo help me find flights from London to Seattle?
Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from London.
I’m not ready to book a flight from London to Seattle right now. Can momondo alert me if prices change?
Yes. momondo can track prices for London to Seattle 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.