Cheapest one-way flights from Chicago to Bangkok in September from 338€

AirHint found the following cheapest one-way flights from Chicago (ORD) to Bangkok (BKK) in September 2025 (see full year).

One-Way flights

23 Sep United
02 Sep United
08 Sep United
17 Sep Korean Air
29 Sep United
01 Sep ANA
30 Sep ANA
22 Sep Korean Air
20 Sep IndiGo
27 Sep United

Also check the deals for return 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.

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