We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.
Browse Airline Reviews
Before you book your next flight, see reviews from travelers around the world
Read Reviews

Low fares for Toronto (YTO) to Seattle (SEA) Low fares for Toronto to Seattle
Mon 08/28 - Sat 09/02
5 days, 0 stops max
$1,413
Sat 09/16 - Thu 09/21
5 days, 0 stops max
$420
Fri 10/13 - Mon 10/16
3 days, 0 stops max
$420
Tue 11/07 - Tue 11/14
7 days, 0 stops max
$420
Mon 12/18 - Mon 01/01
14 days, 0 stops max
$422
Sun 10/01 - Fri 10/06
5 days, 0 stops max
$418
Fri 09/22 - Sun 09/24
2 days, 0 stops max
$420
Sun 09/17 - Sun 09/24
7 days, 0 stops max
$420
Thu 09/21 - Mon 09/25
4 days, 0 stops max
$420
Tue 09/26 - Mon 10/02
6 days, 0 stops max
$420
Tue 09/12 - Sat 09/16
4 days, 0 stops max
$420
Wed 09/27 - Wed 10/04
7 days, 0 stops max
$422
About TripAdvisor Flights

Your one-stop shop for finding the best flights from London to Seattle. Simply tell us where and when you want to travel and we'll do all the legwork for you. Featuring the most powerful shopping tools on the web, we search the largest online travel websites, established airfare discounters, plus the world's leading airlines and low-cost carriers to bring back thousands of flight options.

Travel information for London, Canada to Seattle

Route information
  • London, Canada is 2069 miles from Seattle
  • There are 6 daily flights from London, Canada to Seattle
  • There are 6 weekly flights from London, Canada to Seattle
  • 6 non-stop flights are operating from London, Canada to Seattle today
  • Air Canada has the most nonstop flights between London, Canada and Seattle
  • Vancouver, Canada - Vancouver International Airport is the most popular connection for one stop flights between London, Canada and Seattle
In-Flight Information
  • The average flying time for a direct flight from London, Canada to Seattle is 5 hours 16 minutes
  • Most direct flights leave around 8:00 EDT
Arrival information
  • Seattle is 10 mi from Seattle-Tacoma Intl Airport (Seattle, WA).
  • Seattle-Tacoma Intl Airport (Seattle, WA)
    • Right now, 73 airlines operate out of Seattle-Tacoma Intl Airport.
    • Seattle-Tacoma Intl Airport offers nonstop flights to 105 cities.
    • Every week, at least 7,847 domestic flights and 1,059 international flights depart from Seattle-Tacoma Intl Airport.

Shop for hotels in Seattle