Cheapest return flights from Chicago to Seoul in April from $880

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

Return flights

25 Apr - 04 May Frontier Airlines
20 Apr - 04 May Frontier Airlines
23 Apr - 12 May Alaska Airlines
13 Apr - 05 May Frontier Airlines
20 Apr - 30 Apr Frontier Airlines
13 Apr - 20 Apr Hawaiian Airlines
22 Apr - 03 May Frontier Airlines
22 Apr - 02 May Frontier Airlines
23 Apr - 09 May Alaska Airlines
10 Apr - 19 Apr WestJet
17 Apr - 28 Apr Frontier Airlines
15 Apr - 29 Apr Frontier Airlines
06 Apr - 15 Apr WestJet
23 Apr - 03 May Frontier Airlines
07 Apr - 19 Apr Hawaiian Airlines
24 Apr - 02 May Alaska Airlines
07 Apr - 24 Apr Spirit Airlines
23 Apr - 01 May Alaska Airlines
14 Apr - 25 Apr Frontier Airlines
16 Apr - 23 Apr Hawaiian Airlines

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.