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	United
22 Jan - 29 Jan	United
26 Jan - 26 Feb	United
27 Jan - 25 Feb	United
28 Jan - 25 Feb	United
29 Jan - 25 Feb	United
21 Jan - 25 Feb	United
21 Jan - 26 Feb	United
13 Jan - 20 Jan	ANA
14 Jan - 21 Jan	Turkish Airlines
20 Jan - 24 Feb	United
12 Jan - 02 Feb	United
13 Jan - 12 Feb	Delta
06 Jan - 27 Jan	Delta
10 Jan - 17 Jan	Cathay Pacific
09 Jan - 18 Jan	United
03 Jan - 13 Jan	Cathay Pacific
05 Jan - 19 Jan	ANA
06 Jan - 18 Jan	United
06 Jan - 13 Jan	Delta

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 596€

Return flights