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

Return flights

17 Sep - 24 Sep	IndiGo
16 Sep - 24 Sep	IndiGo
18 Sep - 25 Sep	IndiGo
10 Sep - 12 Sep	IndiGo
08 Sep - 13 Sep	IndiGo
10 Sep - 26 Sep	IndiGo
03 Sep - 11 Sep	IndiGo
07 Sep - 14 Sep	Scoot Tigerair
07 Sep - 13 Sep	IndiGo
06 Sep - 05 Oct	Scoot Tigerair

Also check the deals for one-way flights from Bangkok to Lyon 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 Bangkok to Lyon in September from 630€

Return flights