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

Return flights

21 Jul - 24 Aug	Delta
09 Jul - 15 Jul	ANA
11 Jul - 18 Jul	China Eastern
20 Jul - 27 Jul	Spirit Airlines
15 Jul - 21 Jul	Spirit Airlines
26 Jul - 05 Aug	Spirit Airlines
10 Jul - 16 Jul	Spirit Airlines
09 Jul - 16 Jul	Spirit Airlines
19 Jul - 06 Aug	Delta
08 Jul - 16 Jul	ANA
08 Jul - 17 Jul	ANA
08 Jul - 15 Jul	ANA
08 Jul - 19 Jul	ANA

Also check the deals for one-way flights from Detroit to Bangkok in July.

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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Cheapest return flights from Detroit to Bangkok in July from 862€

Return flights