Cheapest return flights from Washington to Seoul in October from 865€

Best time to book flights for Washington (IAD) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Washington (IAD) to Seoul (ICN) in October 2025 (see full year).

Return flights

30 Oct - 21 Nov Turkish Airlines
02 Oct - 18 Oct Turkish Airlines
26 Oct - 01 Nov Turkish Airlines
07 Oct - 11 Nov Turkish Airlines
03 Oct - 10 Oct Turkish Airlines
08 Oct - 17 Nov Alaska Airlines
02 Oct - 18 Oct Delta direct
26 Oct - 01 Nov Korean Air direct
03 Oct - 10 Oct Delta direct
30 Oct - 21 Nov Delta direct
20 Oct - 14 Nov Alaska Airlines
20 Oct - 02 Nov Alaska Airlines
10 Oct - 27 Oct United
07 Oct - 11 Nov Korean Air direct

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

Skyscanner

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.

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