Cheapest return IAD–ICN flights, October

AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN) in October 2026 (see full year).

Return flights

12 Oct - 19 Oct Air Premia direct
19 Oct - 02 Nov Air Premia direct
09 Oct - 23 Oct Air Premia direct
11 Oct - 14 Oct Air Premia direct
02 Oct - 15 Nov Air Premia direct
05 Oct - 14 Oct Air Premia direct
02 Oct - 12 Oct Air Premia direct
31 Oct - 07 Nov Alaska Airlines
31 Oct - 06 Nov Alaska Airlines
07 Oct - 03 Nov Qatar Airways
14 Oct - 17 Oct Qatar Airways
14 Oct - 17 Oct Korean Air direct
14 Oct - 24 Oct Delta direct
01 Oct - 14 Nov Air Canada
01 Oct - 14 Nov Delta direct
31 Oct - 07 Nov Delta direct
31 Oct - 06 Nov Delta direct

Also check the deals for one-way flights from Washington to Seoul in October.

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