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

Return flights

01 Sep - 07 Sep	China Southern
24 Sep - 11 Oct	Thai Lion Air
05 Sep - 13 Sep	China Southern
20 Sep - 27 Sep	China Southern
15 Sep - 22 Sep	Thai Lion Air
29 Sep - 11 Oct	Thai Lion Air
23 Sep - 11 Oct	Thai Lion Air
28 Sep - 11 Oct	IndiGo
30 Sep - 11 Oct	IndiGo
25 Sep - 11 Oct	IndiGo
18 Sep - 25 Sep	China Eastern
26 Sep - 11 Oct	Thai Lion Air
29 Sep - 06 Oct	IndiGo
30 Sep - 14 Oct	IndiGo
08 Sep - 12 Oct	IndiGo
13 Sep - 28 Sep	Emirates

Also check the deals for one-way flights from Bangkok to Budapest 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 Budapest in September from 525€

Return flights