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

Return flights

05 Mar - 19 Mar	Delta
09 Mar - 16 Mar	Delta
03 Mar - 07 Mar	Delta
25 Mar - 08 Apr	Delta
26 Mar - 06 Apr	Delta
08 Mar - 14 Mar	Delta
14 Mar - 21 Mar	Delta
06 Mar - 14 Mar	Delta
13 Mar - 21 Mar	Delta
20 Mar - 28 Mar	Delta
06 Mar - 13 Mar	Delta
07 Mar - 20 Mar	Delta
28 Mar - 04 Apr	Delta
26 Mar - 02 Apr	Delta
20 Mar - 02 Apr	Delta

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 $940

Return flights