Flights Seattle → San Francisco

One way · Economy · 1 adult · price per person · next 14 days from September 10, 2026

Last observed price on Aviasales for 4 of 15 dates; the lowest is $137. Prices are not guaranteed and are confirmed at booking time.

Last observed price by date

Date	Last observed price	Flight	Departure	Arrival	Stops
Thu, Sep 10	—	—	—	—	—
Fri, Sep 11	—	—	—	—	—
Sat, Sep 12	—	—	—	—	—
Sun, Sep 13	$164	United Airlines UA499	7:00 AM Sea-Tac (SEA)	9:18 AM SFO (SFO)	Direct
Mon, Sep 14	$176	Frontier Airlines F93406 (1st of 2 flights)	4:27 PM Sea-Tac (SEA)	12:14 AM (+1) SFO (SFO)	1 stop · Denver International
Tue, Sep 15	$175	Frontier Airlines F93406 (1st of 2 flights)	4:27 PM Sea-Tac (SEA)	12:14 AM (+1) SFO (SFO)	1 stop · Denver International
Wed, Sep 16	—	—	—	—	—
Thu, Sep 17	—	—	—	—	—
Fri, Sep 18	—	—	—	—	—
Sat, Sep 19	—	—	—	—	—
Sun, Sep 20	—	—	—	—	—
Mon, Sep 21	$137lowest	Frontier Airlines F92408 (1st of 2 flights)	7:45 PM Sea-Tac (SEA)	8:14 AM (+1) SFO (SFO)	1 stop · Las Vegas Harry Reid
Tue, Sep 22	—	—	—	—	—
Wed, Sep 23	—	—	—	—	—
Thu, Sep 24	—	—	—	—	—

Price not guaranteed: it is confirmed on Aviasales at booking time. How it works

Seattle, United States (SEA, city code)

Seattle-Tacoma (SEA).

San Francisco, United States (SFO, city code)

San Francisco International (SFO).

FromToDeparture date