AirHint found the following cheapest return flights from San Francisco (SFO) to Seoul (ICN)
in September 2025 (see full year ).
Return flights
05 Sep
- 14 Sep
Air Premia
$ 636
direct
10 Sep
- 17 Sep
Air Premia
$ 636
direct
15 Sep
- 22 Sep
Air Premia
$ 644
direct
01 Sep
- 08 Sep
Air Premia
$ 644
direct
08 Sep
- 12 Sep
Air Premia
$ 644
direct
08 Sep
- 19 Sep
Air Premia
$ 644
direct
10 Sep
- 22 Oct
Air Premia
$ 644
direct
01 Sep
- 18 Sep
United
$ 661
direct
12 Sep
- 24 Sep
United
$ 661
direct
10 Sep
- 24 Sep
United
$ 661
direct
16 Sep
- 25 Sep
United
$ 661
direct
28 Sep
- 16 Oct
United
$ 661
direct
26 Sep
- 10 Oct
United
$ 661
direct
29 Sep
- 14 Oct
United
$ 661
direct
25 Sep
- 15 Oct
United
$ 661
direct
04 Sep
- 07 Oct
United
$ 661
direct
26 Sep
- 08 Oct
United
$ 662
direct
27 Sep
- 14 Oct
United
$ 667
direct
26 Sep
- 13 Oct
Alaska Airlines
$ 703
17 Sep
- 06 Oct
Air Premia
$ 728
Also check the deals for one-way flights from San Francisco to Seoul in September .
The deals are updated regularly. The prices may go up as tickets are purchased by other travellers.
Only the cheapest flights are offered.
Select a price to book and secure these cheap prices.