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

Return flights

11 Mar - 22 Mar	Air India
18 Mar - 31 Mar	Air India
23 Mar - 21 Apr	Air India
06 Mar - 11 Mar	Turkish Airlines
13 Mar - 22 Mar	Air India
29 Mar - 11 Apr	Air India
04 Mar - 18 Mar	Korean Air
02 Mar - 18 Mar	Korean Air
02 Mar - 09 Mar	Delta
01 Mar - 08 Mar	Air India
13 Mar - 21 Mar	Air India
09 Mar - 13 Mar	Korean Air
27 Mar - 05 Apr	Air India
10 Mar - 10 Apr	Etihad Airways
18 Mar - 05 Apr	Etihad Airways
26 Mar - 11 Apr	Etihad Airways
28 Mar - 05 Apr	Etihad Airways
26 Mar - 01 Apr	Etihad Airways
31 Mar - 10 Apr	Spirit Airlines
27 Mar - 13 Apr	Etihad Airways

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

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 March from 615€

Return flights