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

Return flights

09 Sep - 28 Oct	AJet
30 Sep - 27 Oct	AJet
14 Sep - 27 Oct	AJet
13 Sep - 27 Oct	AJet
25 Sep - 17 Oct	AJet
11 Sep - 20 Sep	AJet
11 Sep - 18 Sep	AJet
14 Sep - 21 Sep	Gulf Air
17 Sep - 24 Sep	Gulf Air
29 Sep - 29 Oct	AJet
02 Sep - 29 Sep	Etihad Airways
07 Sep - 24 Sep	Etihad Airways
01 Sep - 15 Sep	Etihad Airways
10 Sep - 26 Sep	Etihad Airways
13 Sep - 02 Oct	AJet
07 Sep - 25 Sep	Etihad Airways
01 Sep - 25 Sep	Etihad Airways
10 Sep - 13 Oct	China Eastern
16 Sep - 14 Oct	AJet
02 Sep - 29 Oct	Aegean Airlines

Also check the deals for one-way flights from Paris 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 Paris to Bangkok in September from 474€

Return flights