Flights

Flights from Seattle to San Francisco

Fares we've seen from Seattle (SEA) to San Francisco (SFO) start from US$64 on 15 Dec 2026 with Alaska Airlines. Prices come from partner searches in the last 48 hours and change quickly, so look before you book.

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Compare Seattle to San Francisco on your dates and see current fares from our sources, listed by price.

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Fares by month

MonthSeen fromDateAirline
October 2026US$9319 Oct 2026Southwest · directCheck now
December 2026US$6415 Dec 2026Alaska Airlines · directCheck now
January 2027US$751 Jan 2027Southwest · directCheck now
March 2027US$1006 Mar 2027Alaska Airlines · directCheck now

One-way fares in US dollars, last seen on Aviasales. They can change at any time and may not be available on every day of the month. Partner links: we may earn a commission if you book, at no extra cost to you.

Airlines on this route

Airlines we've seen with fares on this route, listed by price:

  • Alaska Airlines: from US$64 (direct)
  • Southwest: from US$75 (direct)
  • Frontier: from US$103 (with a stop)

Plan the rest of your trip to San Francisco

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Questions about Seattle to San Francisco flights

How much do flights from Seattle to San Francisco cost? Fares we've seen start from US$64 on 15 Dec 2026 with Alaska Airlines. Fares change quickly, so look before you book.

When can I save on flights from Seattle to San Francisco? Among the next six months we checked, December 2026 had fares from US$64 in our data, while March 2027 reached US$100. Prices vary by date, so compare several days and save.

Which airlines fly from Seattle to San Francisco? We've seen fares from Alaska Airlines, Southwest, Frontier. This reflects recent searches, not a complete timetable.

Are there direct flights from Seattle to San Francisco? Yes, we've seen direct fares (4 of 7 recent fares were direct). Availability depends on the date.

Is FindMyFlight free to use? Yes. We never add anything to the fare. If you book through a partner link we may earn a commission from the partner, at no extra cost to you.

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