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Not ready to book? to track prices.Find the cheapest flights from Seattle to London
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Delta flights from Seattle to London Gatwick Airport
Our best Delta deals on Seattle to London Gatwick Airport flight tickets
SWISS flights from Seattle to London Gatwick Airport
Our best SWISS deals on Seattle to London Gatwick Airport flight tickets
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How to get the cheapest flight ticket from Seattle to London Gatwick Airport
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 to London Gatwick Airport?
In general, January is the cheapest month to fly from Seattle to London Gatwick Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $554. If you are unable to visit London Gatwick Airport during the month of January, then departing from Seattle during the month April is also very affordable. Most momondo users find prices during this month for around $568.
What is the cheapest day to depart on your flight to London Gatwick Airport?
The cheapest day to depart from Seattle to London Gatwick Airport is on a Sunday when prices can be found for as low as $643. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to London Gatwick Airport on Wednesday is $783.
When to book flights from Seattle to London Gatwick Airport
Cheap Seattle to London Gatwick Airport (SEA to LGW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to London Gatwick Airport
How far is Seattle/Tacoma Intl to London Gatwick by plane?
Seattle/Tacoma Intl and London Gatwick are 4798.7 mi apart from one another. In terms of flight time, this usually takes a little over 11h 30m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to London Gatwick Airport?
Prices for flights from Seattle/Tacoma Intl Airport to London Gatwick Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to London Gatwick Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to London Gatwick Airport is 1 as of May 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to London Gatwick Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to London Gatwick Airport.
What documentation or ID do you need to fly to London Gatwick Airport?
The travel and health documents you'll need for your trip to London Gatwick 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 London Gatwick Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Seattle to London Gatwick Airport?
momondo data reveals that the most frequently booked airline on the route from Seattle to London Gatwick Airport is Icelandair, representing 100% of all bookings.
Best airlines flying from Seattle to London Gatwick Airport
Compare and see reviews for airlines that fly from Seattle to London Gatwick Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $512 | Free Cancellation | Rating 7.0 487 reviews |
Traveling to a place near London?
Book flights to London if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to London?
It is quick and easy to find Seattle to London flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to London that suits you.
Can I find flights from Seattle to London with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to London from Seattle with this policy.
How can momondo help me find flights from Seattle to London?
Once you have performed a search for Seattle to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Seattle to London right now. Can momondo alert me if prices change?
Price alerts on flights to London from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.