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

Return flights

08 Sep - 15 Sep	Wizz Air
06 Sep - 20 Sep	Wizz Air
19 Sep - 19 Oct	Air China
13 Sep - 15 Sep	Wizz Air
16 Sep - 27 Sep	KLM
16 Sep - 29 Sep	KLM
20 Sep - 08 Oct	KLM
17 Sep - 24 Sep	Air France
17 Sep - 04 Oct	Air France
12 Sep - 09 Oct	Air France
16 Sep - 05 Oct	KLM
09 Sep - 22 Oct	KLM
10 Sep - 21 Sep	Air France
20 Sep - 03 Oct	KLM
28 Sep - 15 Oct	Wizz Air
11 Sep - 25 Sep	Air France
15 Sep - 22 Sep	KLM
07 Sep - 19 Sep	Wizz Air
27 Sep - 04 Oct	Wizz Air
23 Sep - 07 Oct	Air France

Also check the deals for one-way flights from Budapest 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 Budapest to Bangkok in September from $590

Return flights