Cheapest return flights from Brussels to Bangkok in September from $640

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

Return flights

09 Sep - 28 Sep ITA Airways
01 Sep - 23 Sep Finnair
01 Sep - 09 Sep Finnair
03 Sep - 11 Sep ITA Airways
14 Sep - 29 Sep Finnair
01 Sep - 29 Sep Finnair
04 Sep - 20 Sep Finnair
03 Sep - 17 Sep Finnair
05 Sep - 19 Sep Finnair
03 Sep - 14 Sep Finnair
14 Sep - 09 Oct Finnair
14 Sep - 09 Oct Thai Airways direct

Also check the deals for one-way flights from Brussels to Bangkok in September.

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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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