Cheap flights from Seattle from $43

Our data suggests that currently, the cheapest flights from Seattle are being offered by Alaska Airlines, American Airlines, and Frontier. For example, Alaska Airlines flights from Seattle to Salt Lake City, start at $46, American Airlines flights from Seattle to Phoenix Sky Harbor Intl Airport cost around $53, and Frontier flights from Seattle to Phoenix Scottsdale Municipal Airport are around $73.

Currently, the cheapest flight from Seattle found by our users is for $23 to Redding. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $85 to travel from Seattle to Redding.

Los Angeles, Vancouver Intl Airport and San Francisco are currently the destinations served most frequently from Seattle, with 67, 59 and 56 flights per day on average, respectively.

Airlines including American Airlines, Alaska Airlines and Delta frequently fly from Seattle. You can view other airlines by performing a quick search in the form above.

If you are looking for a cheap first class flight, consider flights to Sacramento, for which the starting price of a first class seat can be as low as $218.

Prices for flights from Seattle/Tacoma Intl Airport are refreshed on a daily basis.

The number of operators available for flights from Seattle/Tacoma Intl Airport is 60 as of January 2026.

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.

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.