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

Return flights

15 Sep - 20 Sep	AJet
08 Sep - 11 Sep	Pegasus Airlines
13 Sep - 18 Sep	AJet
23 Sep - 26 Sep	AJet
05 Sep - 12 Sep	AJet
25 Sep - 02 Oct	SunExpress
25 Sep - 09 Oct	SunExpress	direct
25 Sep - 02 Oct	SunExpress	direct
18 Sep - 02 Oct	SunExpress
20 Sep - 09 Oct	SunExpress
27 Sep - 09 Oct	SunExpress
20 Sep - 02 Oct	SunExpress
27 Sep - 02 Oct	SunExpress
27 Sep - 16 Oct	SunExpress
13 Sep - 02 Oct	SunExpress	direct
20 Sep - 25 Sep	SunExpress
11 Sep - 18 Sep	SunExpress
04 Sep - 18 Sep	SunExpress
13 Sep - 18 Sep	SunExpress	direct
11 Sep - 13 Sep	SunExpress

Also check the deals for one-way flights from Gaziantep to Basel 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 Gaziantep to Basel in September from 147€

Return flights