AirHint found the following cheapest return flights from Frankfurt (FRA) to Bangkok (BKK) in September 2026 (see full year).

Return flights

08 Sep - 30 Sep	ITA Airways
07 Sep - 21 Sep	ITA Airways
30 Sep - 17 Oct	Saudia
07 Sep - 28 Sep	ITA Airways
05 Sep - 12 Sep	Air France
05 Sep - 21 Sep	Air France
14 Sep - 28 Sep	KLM
07 Sep - 13 Sep	KLM
07 Sep - 05 Oct	KLM
14 Sep - 04 Oct	KLM
05 Sep - 19 Sep	Air France
14 Sep - 26 Sep	KLM
02 Sep - 21 Sep	Finnair
16 Sep - 06 Oct	Finnair
21 Sep - 12 Oct	Air France
21 Sep - 04 Oct	Air France
02 Sep - 13 Oct	Finnair
30 Sep - 14 Oct	ITA Airways
21 Sep - 13 Oct	Saudia
23 Sep - 01 Oct	Saudia

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Bangkok in September from $620

Return flights