Cheapest return ORD–ICN flights, December

AirHint found the following cheapest return flights from Chicago (ORD) to Seoul (ICN) in December 2026 (see full year).

Return flights

07 Dec - 14 Dec United
07 Dec - 21 Dec United
10 Dec - 18 Jan United
14 Dec - 26 Dec United
10 Dec - 23 Jan United
24 Dec - 10 Jan United
31 Dec - 15 Jan Turkish Airlines
22 Dec - 18 Jan Air Canada
17 Dec - 15 Jan United
18 Dec - 09 Jan LOT
10 Dec - 18 Jan Delta direct
07 Dec - 14 Dec Delta direct
07 Dec - 21 Dec Delta direct
17 Dec - 01 Jan Alaska Airlines
16 Dec - 02 Jan TAP
14 Dec - 26 Dec Delta direct

Also check the deals for one-way flights from Chicago to Seoul in December.

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