Cheapest return flights from Bangkok to Chicago in September from $956
AirHint found the following cheapest return flights from Bangkok (BKK) to Chicago (ORD) in September 2025 (see full year).
Return flights
| 28 Sep - 08 Oct | IndiGo | ||
| 24 Sep - 24 Oct | Delta | ||
| 26 Sep - 24 Oct | EVA Air | ||
| 21 Sep - 30 Sep | Delta |
Also check the deals for one-way flights from Bangkok to Chicago in September.
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.
