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

Return flights

07 Nov - 21 Nov	Air China
04 Nov - 13 Nov	Air China
25 Nov - 02 Dec	Air China
05 Nov - 12 Nov	Turkish Airlines
10 Nov - 25 Nov	Turkish Airlines
01 Nov - 11 Nov	Turkish Airlines
24 Nov - 27 Nov	TAP
06 Nov - 23 Nov	Turkish Airlines
08 Nov - 25 Nov	Turkish Airlines
13 Nov - 25 Dec	Turkish Airlines
01 Nov - 15 Nov	Turkish Airlines
09 Nov - 02 Dec	Air Canada
22 Nov - 05 Dec	Turkish Airlines
17 Nov - 28 Nov	Air Canada
20 Nov - 02 Dec	Air Canada
20 Nov - 27 Dec	Air Canada
13 Nov - 25 Dec	Delta	direct
20 Nov - 02 Dec	Delta	direct
20 Nov - 27 Dec	Delta	direct
09 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.

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Washington to Seoul in November from $1004

Return flights