Cheapest return flights from Detroit to Bangkok in September from $911

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

Return flights

19 Sep - 22 Sep Spirit Airlines
27 Sep - 04 Oct WestJet
08 Sep - 22 Sep Frontier Airlines
09 Sep - 12 Sep WestJet
10 Sep - 17 Sep Alaska Airlines
07 Sep - 12 Sep Spirit Airlines
12 Sep - 21 Sep Korean Air

Also check the deals for one-way flights from Detroit 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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