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

Return flights

01 Sep - 14 Sep	Oman Air
28 Sep - 17 Oct	Oman Air
25 Sep - 11 Oct	Oman Air
19 Sep - 29 Sep	Austrian Airlines
10 Sep - 23 Sep	Etihad Airways
03 Sep - 09 Sep	Etihad Airways
01 Sep - 08 Sep	Etihad Airways
21 Sep - 02 Oct	Etihad Airways
09 Sep - 28 Sep	Finnair
04 Sep - 21 Sep	Finnair
19 Sep - 28 Sep	Finnair
04 Sep - 14 Sep	Finnair
11 Sep - 21 Sep	Finnair
29 Sep - 14 Oct	Etihad Airways
27 Sep - 12 Oct	Austrian Airlines
27 Sep - 09 Oct	Austrian Airlines
27 Sep - 10 Oct	Austrian Airlines
17 Sep - 12 Oct	Lufthansa
17 Sep - 15 Oct	Lufthansa
17 Sep - 03 Oct	Lufthansa

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 487€

Return flights