Cheap Flights from Seattle to Ontario
Did You Know?
There are 44 connecting cities from Seattle, WA to Ontario.
The longest flight from Seattle, WA to Ontario is 2,054 miles.
Toronto, ON is the most popular connecting city from Seattle, WA to Ontario.
The earliest flight from Seattle, WA leaves at 0:15 am.
The most popular destination from Seattle, WA is Portland International.
There are 7 direct flights from Seattle to Ontario.
Toronto, ON has the most direct flights to Ontario.
There are 48 carriers flying into Ontario.
Cheap International Flights from Seattle - SEA
American, US Airways, Delta, United, Alaska, Air Canada
Air Canada, United, Delta, Alaska, American, US Airways
United, Air Canada
Delta, Air Canada, United
Air Canada, United