San Francisco to Seoul Incheon (SFO → ICN). We are tracking 19 fares on this route.
Cheapest tracked fare $325 · typical price $758 · you save about $433 (57%)
Cheapest fares we're tracking
Airline
Departs
Stops
Price
Air Premia
2026-09-05
Direct
$325
United Airlines
2026-10-31
1 stop
$336
United Airlines
2026-10-01
Direct
$341
Air Premia
2026-09-12
Direct
$342
Air Premia
2026-09-14
Direct
$348
United Airlines
2026-10-25
1 stop
$349
Air Premia
2026-09-21
Direct
$350
Air Premia
2026-09-11
Direct
$351
Air Premia
2026-09-18
Direct
$352
United Airlines
2026-11-03
1 stop
$354
Air Premia
2026-09-07
Direct
$355
Air Premia
2026-11-29
Direct
$392
Air Premia
2026-10-02
Direct
$404
Air Premia
2027-01-31
Direct
$407
China Southern
2026-09-13
1 stop
$411
China Southern
2026-09-15
1 stop
$412
Air Premia
2026-10-14
Direct
$465
Alaska Airlines
2026-10-10
1 stop
$467
Asiana Airlines
2026-12-15
Direct
$510
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 San Francisco to Seoul Incheon get?
The cheapest fare we have tracked on this route is $325, compared with a typical $758 for a trip of this distance.
Is it cheaper to fly to Seoul Incheon 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 San Francisco to Seoul Incheon 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.