Seattle to San Francisco (SEA → SFO). We are tracking 23 fares on this route.
Cheapest tracked fare $65 · typical price $137 · you save about $72 (53%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
—
2026-12-07
1 stop
$65
—
2026-10-20
1 stop
$65
Frontier Airlines
2026-09-15
1 stop
$72
—
2026-11-10
1 stop
$72
Frontier Airlines
2026-10-21
1 stop
$75
Frontier Airlines
2026-10-06
1 stop
$77
—
2026-10-14
1 stop
$77
—
2026-09-30
1 stop
$77
—
2027-01-06
Direct
$79
—
2026-09-23
Direct
$79
—
2026-11-04
Direct
$79
—
2026-12-09
Direct
$79
—
2027-02-17
Direct
$79
—
2027-02-03
Direct
$79
Alaska
2026-10-05
Direct
$79
United
2026-10-19
Direct
$79
United
2026-10-26
Direct
$79
United
2026-11-02
Direct
$79
United
2026-11-09
Direct
$79
United
2026-11-16
Direct
$79
Could you save more?
The airport you were going to fly from is often not the cheapest one. Compare every airport in a region against each other, or check whether a multi-day stopover beats the direct fare.
How cheap can flights from Seattle to San Francisco get?
The cheapest fare we have tracked on this route is $65, compared with a typical $137 for a trip of this distance.
Is it cheaper to fly to San Francisco from a different airport?
Often, yes. Fares out of secondary airports are frequently cheaper than the obvious hub, but they are the ones most likely to be missing from a normal search. Our reverse search compares every airport in a region against each other so the cheaper departure point is not hidden.
Could a stopover make Seattle to San Francisco cheaper?
Sometimes. On thin long-haul routes a two-leg trip with a multi-day stopover can beat the direct fare, and occasionally a direct fare is not sold at all. Our detour search prices those routings against the direct flight.