Cheapest return flights from Seattle to Seoul in April from 664€
AirHint found the following cheapest return flights from Seattle (SEA) to Seoul (ICN)
in April 2026 (see full year ).
Return flights
09 Apr
- 16 Apr
Korean Air
664 €
20 Apr
- 14 May
Air Canada
668 €
15 Apr
- 22 Apr
Asiana Airlines
675 €
12 Apr
- 19 Apr
Korean Air
682 €
07 Apr
- 14 Apr
Alaska Airlines
689 €
08 Apr
- 19 Apr
Alaska Airlines
693 €
04 Apr
- 14 Apr
Alaska Airlines
698 €
07 Apr
- 21 Apr
Alaska Airlines
698 €
13 Apr
- 20 Apr
China Airlines
705 €
04 Apr
- 12 Apr
Alaska Airlines
705 €
08 Apr
- 15 Apr
Alaska Airlines
707 €
19 Apr
- 03 May
Korean Air
711 €
direct
28 Apr
- 03 May
Alaska Airlines
714 €
20 Apr
- 04 May
Korean Air
725 €
direct
20 Apr
- 14 May
Korean Air
725 €
direct
25 Apr
- 31 May
Alaska Airlines
739 €
26 Apr
- 31 May
Alaska Airlines
758 €
29 Apr
- 24 May
Asiana Airlines
759 €
direct
28 Apr
- 03 May
Asiana Airlines
760 €
direct
25 Apr
- 31 May
Asiana Airlines
760 €
direct
Also check the deals for one-way flights from Seattle to Seoul in April .
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