Cheapest return ORD–BKK flights, September

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

Return flights

09 Sep - 15 Sep Cathay Pacific
25 Sep - 11 Oct Cathay Pacific
09 Sep - 17 Sep Cathay Pacific
06 Sep - 19 Sep Cathay Pacific
14 Sep - 29 Sep Cathay Pacific
09 Sep - 16 Sep Cathay Pacific
19 Sep - 26 Sep Cathay Pacific
11 Sep - 16 Sep United

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

Powered by

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.