SFO to SEA from $117 in economy – flightdeals.net

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United Airlines

UAUnited Airlines

Round Trip•Economy

San Francisco International Airport

San Francisco, United States

Seattle–Tacoma International Airport

Seattle / Tacoma, United States

$231 USD

-49%$117 USD

Verified about 12 hours ago

September 2026

Mon

Tue

Wed

Thu

Fri

Sat

Sun

31$196 1$137 2$158 3$272 4$346 5$137 6$137 7$157 8$137 9$117 10$157 11$211 12$117 13$137 14$157 15$137 16$117 17$185 18$157 19$117 20$137 21$157 22$137 23$117 24$157 25$157 26$117 27$137 28$157 29$137 30$117 1$157 2$241 3$117 4$137

Extremely Rare Availability

4% of dates checked are available within 10% of the lowest price

Tuesday, September 29th, 2026

1 round-trip options

Returning

Fri, Oct 9, 2026•10 Day Trip

$137 USD