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

Return flights

13 Nov - 27 Nov	Turkish Airlines
26 Nov - 08 Dec	Air Canada
25 Nov - 02 Dec	Air Canada
24 Nov - 02 Dec	Air Canada
01 Nov - 07 Nov	Turkish Airlines
01 Nov - 05 Nov	Turkish Airlines
03 Nov - 08 Nov	Turkish Airlines
19 Nov - 21 Dec	Air Canada
21 Nov - 29 Nov	Air Canada
15 Nov - 22 Nov	Turkish Airlines
20 Nov - 30 Nov	Air Canada
06 Nov - 28 Nov	Turkish Airlines
21 Nov - 27 Dec	Air Canada
26 Nov - 26 Dec	Turkish Airlines
07 Nov - 21 Nov	Alaska Airlines
08 Nov - 13 Nov	Air Canada
19 Nov - 21 Dec	Delta	direct
26 Nov - 08 Dec	Delta	direct
24 Nov - 02 Dec	Delta	direct
25 Nov - 02 Dec	Delta	direct

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

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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Cheapest return flights from Washington to Seoul in November from 950€

Return flights