AirHint found the following cheapest one-way flights from Chicago (ORD) to Bangkok (BKK) in September 2025 (see full year).
One-Way flights
| 01 Sep | Air India | ||
| 03 Sep | Air India | ||
| 08 Sep | Korean Air | ||
| 10 Sep | Korean Air | ||
| 04 Sep | Korean Air | ||
| 23 Sep | Korean Air | ||
| 11 Sep | Korean Air | ||
| 15 Sep | Korean Air | ||
| 17 Sep | Korean Air | ||
| 29 Sep | Air India |
Also check the deals for return flights from Chicago to Bangkok 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.
Find us on social media