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

Return flights

12 Sep - 25 Sep	KLM
09 Sep - 22 Sep	Air France
09 Sep - 23 Sep	Air France
21 Sep - 30 Sep	Air France
07 Sep - 27 Sep	Air France
08 Sep - 29 Sep	Air France
06 Sep - 21 Sep	Lufthansa
04 Sep - 28 Sep	SWISS
03 Sep - 16 Sep	SWISS
27 Sep - 07 Oct	SWISS
27 Sep - 11 Oct	SWISS
20 Sep - 19 Oct	KLM
01 Sep - 10 Sep	Austrian Airlines
15 Sep - 05 Oct	Air France
27 Sep - 12 Oct	Air France
28 Sep - 13 Oct	Air France
14 Sep - 11 Oct	Ryanair

Also check the deals for one-way flights from Marseille 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.

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Cheapest return flights from Marseille to Bangkok in September from $699

Return flights