AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN)
in May 2025 (see full year ).
Return flights
05 May
- 28 May
Frontier Airlines
$ 974
07 May
- 14 May
Philippine Airlines
$ 981
20 May
- 28 May
Alaska Airlines
$ 989
26 May
- 14 Jun
Frontier Airlines
$ 994
26 May
- 16 Jun
Alaska Airlines
$ 1004
08 May
- 15 May
EVA Air
$ 1019
17 May
- 29 May
Frontier Airlines
$ 1043
13 May
- 04 Jun
Frontier Airlines
$ 1089
15 May
- 23 May
Frontier Airlines
$ 1104
20 May
- 31 May
Alaska Airlines
$ 1111
13 May
- 20 Jun
Turkish Airlines
$ 1124
13 May
- 20 May
Turkish Airlines
$ 1125
19 May
- 26 May
Turkish Airlines
$ 1165
13 May
- 27 May
Turkish Airlines
$ 1173
29 May
- 06 Jun
Turkish Airlines
$ 1270
21 May
- 27 Jun
Turkish Airlines
$ 1289
23 May
- 08 Jun
Air Canada
$ 1336
15 May
- 29 Jun
Air Canada
$ 1340
16 May
- 29 Jun
Air Canada
$ 1383
21 May
- 27 Jun
Delta
$ 1392
direct
Also check the deals for one-way flights from Seattle to Seoul in May .
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.
