Cheapest return flights from Basel to Bangkok in September from $610

Best time to book flights for Basel (BSL) to Bangkok (BKK) flights at AirHint

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

Return flights

15 Sep - 27 Sep KLM
06 Sep - 17 Sep KLM
17 Sep - 17 Oct Air France
20 Sep - 04 Oct Air France
07 Sep - 15 Sep KLM
01 Sep - 18 Sep KLM
28 Sep - 24 Oct Air France
06 Sep - 20 Sep KLM
19 Sep - 29 Sep KLM
01 Sep - 08 Sep KLM
18 Sep - 05 Oct KLM
02 Sep - 09 Sep KLM
05 Sep - 23 Sep Pegasus Airlines

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

Skyscanner

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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