AirHint found the following cheapest return flights from Chicago (ORD) to Bangkok (BKK) in January 2026 (see full year).

Return flights

28 Jan - 11 Feb	Korean Air
29 Jan - 05 Feb	Korean Air
28 Jan - 05 Feb	Korean Air
21 Jan - 26 Feb	Korean Air
13 Jan - 20 Jan	Cathay Pacific
06 Jan - 19 Jan	Cathay Pacific
28 Jan - 04 Feb	Korean Air
14 Jan - 21 Jan	Cathay Pacific
12 Jan - 27 Jan	Cathay Pacific
15 Jan - 22 Jan	Cathay Pacific
06 Jan - 30 Jan	Cathay Pacific
10 Jan - 21 Jan	Cathay Pacific
08 Jan - 22 Jan	United
09 Jan - 18 Jan	Turkish Airlines
04 Jan - 17 Jan	Alaska Airlines

Also check the deals for one-way flights from Chicago to Bangkok in January.

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 Chicago to Bangkok in January from $664

Return flights