London is 4781.3 mi away from Seattle/Tacoma Intl. By plane, this route typically takes 9h 20m.
Prices for flights from Seattle/Tacoma Intl Airport to London are refreshed on a daily basis.
The number of operators available for flights from Seattle/Tacoma Intl Airport to London is 15 as of February 2025.
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.
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.
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to London is Boeing 787-10 Dreamliner (33.16% of total bookings). The next most popular plane models are Airbus A330-900neo (22.65%), Boeing 787-9 Dreamliner (16.97%), and Boeing 777 (14.62%).
Based on momondo bookings for flights between Seattle and London, the leading airline is Delta, making up 21% of the total bookings. Other popular airlines include British Airways with 21%, Virgin Atlantic with 16%, and Icelandair with 15%.
Airline | Rating | Free Cancellation | Price | ||
---|---|---|---|---|---|
PriceFrom $384 | Free Cancellation | Rating 6.7 7,006 reviews | |||
PriceFrom $504 | Free Cancellation | Rating 7.0 493 reviews | |||
PriceFrom $583 | Free Cancellation | Rating 7.0 2,638 reviews | |||
PriceFrom $583 | Free Cancellation | Rating 7.1 1,075 reviews | |||
PriceFrom $586 | Free Cancellation | Rating 7.6 1,279 reviews | |||
PriceFrom $592 | Free Cancellation | Rating 7.4 1,462 reviews | |||
PriceFrom $597 | Free Cancellation | Rating 7.8 1,334 reviews | |||
PriceFrom $611 | Free Cancellation | Rating 7.4 8,831 reviews | |||
PriceFrom $612 | Free Cancellation | Rating 8.0 8,315 reviews | |||
PriceFrom $614 | Free Cancellation | Rating 7.5 659 reviews |
Delta flight deals from Seattle to London start from $612 round-trip. Over the 7 Delta flights for this route in a normal week, average airfare is usually $886 round-trip - but some users have found much cheaper deals with momondo.
Across 9,694 Alaska Airlines reviews on momondo, the average score is 8.0/10. Alaska Airlines flies from Seattle to London about 6 times each week, with ticket deals ranging from $800 to $1,066. Price data is based on momondo searches in the last 72 hours.
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.
Yes. All flights to London from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.
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.
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.