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Not ready to book? Create a price alert to track prices.Easily compare round-trip flights from London Heathrow Airport 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 Heathrow Airport to Seattle by changing tabs
Find the cheapest one-way flights from London Heathrow Airport to Seattle
If you're looking for one-way flights from London Heathrow Airport to Seattle, view some of our deals below provided by British Airways, Icelandair and JetBlue
Search last-minute flights to Seattle from London Heathrow Airport
Find and compare round-trip flight prices for your last-minute flight from London Heathrow Airport to Seattle
KLM flights from London Heathrow Airport to Seattle
Our best KLM deals on London Heathrow Airport to Seattle flight tickets
Delta flights from London Heathrow Airport to Seattle
Our best Delta deals on London Heathrow Airport to Seattle flight tickets
How to get the cheapest flight ticket from London Heathrow Airport 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 Heathrow Airport to Seattle?
January. The cheapest time of year to fly to Seattle from London Heathrow Airport is January. The most expensive is July.
What is the cheapest day to depart London Heathrow Airport for Seattle?
Thursday. The cheapest day of the week is typically Thursday. The most expensive is typically Monday
When is the cheapest time to fly from London Heathrow Airport to Seattle?
In the morning. London Heathrow Airport to Seattle flights are approximately 2% more expensive at noon than in the morning
How far in advance should you book London Heathrow Airport to Seattle flights?
45 days before. The cheapest time to buy a flight from London Heathrow Airport to Seattle is approximately 45 days to departure
How many flights depart from London Heathrow Airport to Seattle on average per day?
The number of flights available between London Heathrow Airport and Seattle is 21 per day as of April 2024. The most frequent departure time is 11:00a.m., with 58% of daily flights leaving in the afternoon.
How many flights depart from London Heathrow Airport to Seattle on average per week?
The number of flights available between London Heathrow Airport and Seattle is 149 per week as of April 2024. The most frequent departure day is Saturday, with 17% of weekly flights leaving on this day.
Can stopping save me money on London Heathrow Airport to Seattle flights?
No. A direct flight is the cheapest option for a flight between London Heathrow Airport to Seattle.
Cheap London Heathrow Airport to Seattle (LHR to SEA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Seattle
Best price found | C$ 728 |
|---|---|
Fastest flight time | 9h 45m |
Direct flights | Every day |
Airports in Seattle | 1 airport |
How far is London Heathrow to Seattle/Tacoma Intl by plane?
London Heathrow and Seattle/Tacoma Intl are 7683.2 km apart from one another. By plane, this route typically takes 9h 45m.
When did momondo last update prices for flights from London Heathrow Airport to Seattle/Tacoma Intl Airport?
Prices for flights from London Heathrow Airport to Seattle/Tacoma Intl Airport are updated daily.
How old do you have to be to fly from London Heathrow Airport 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 Heathrow Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking 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 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. All flights to Seattle from London on momondo can be compared and filtered by various policies on offer, including flexible booking.
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 offers price alerts on flights to Seattle from London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.