Cheapest return BKK–BCN flights, September

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

Return flights

09 Sep - 22 Sep Kuwait Airways
16 Sep - 22 Sep Kuwait Airways
16 Sep - 20 Sep Kuwait Airways
24 Sep - 07 Oct Qatar Airways
24 Sep - 06 Oct Qatar Airways
16 Sep - 26 Sep Qatar Airways
25 Sep - 08 Oct Qatar Airways
26 Sep - 03 Oct Qatar Airways
01 Sep - 10 Sep Kuwait Airways
10 Sep - 14 Sep Qatar Airways
04 Sep - 10 Sep Qatar Airways
17 Sep - 20 Sep Qatar Airways
18 Sep - 21 Sep Qatar Airways
18 Sep - 20 Sep ITA Airways
30 Sep - 15 Oct Emirates

Also check the deals for one-way flights from Bangkok to Barcelona 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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