Portland ME to San Francisco (PWM → SFO). We are tracking 12 fares on this route.
Cheapest tracked fare $129 · typical price $199 · you save about $70 (35%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
—
2026-10-28
1 stop
$129
—
2026-11-17
1 stop
$129
—
2026-12-09
1 stop
$129
—
2027-02-01
1 stop
$129
—
2026-10-24
1 stop
$194
—
2027-01-06
1 stop
$200
—
2026-10-21
1 stop
$200
—
2026-11-04
1 stop
$200
—
2026-12-02
1 stop
$200
—
2027-02-03
1 stop
$200
—
2026-11-11
1 stop
$200
—
2026-10-25
Direct
$200
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 Portland ME to San Francisco get?
The cheapest fare we have tracked on this route is $129, compared with a typical $199 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 Portland ME 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.