Cheapest return flights from Chicago to Bangkok in September from 746€

AirHint found the following cheapest return flights from Chicago (MDW) to Bangkok (BKK) in September 2025 (see full year).

Return flights

01 Sep - 09 Sep Delta
01 Sep - 11 Sep Delta
08 Sep - 17 Sep Delta
03 Sep - 10 Sep Delta
09 Sep - 17 Sep Delta
10 Sep - 14 Sep Delta
21 Sep - 06 Oct Delta
23 Sep - 22 Oct KLM

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

Skyscanner

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 Bangkok

Cheap car rent in Bangkok

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