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

Return flights

23 Sep - 30 Sep	easyJet
23 Sep - 27 Sep	easyJet	direct
09 Sep - 16 Sep	easyJet
02 Sep - 09 Sep	easyJet
12 Sep - 16 Sep	Wizz Air Malta
13 Sep - 20 Sep	Wizz Air Malta
23 Sep - 04 Oct	easyJet
13 Sep - 20 Sep	easyJet	direct
21 Sep - 03 Oct	easyJet
24 Sep - 06 Oct	Wizz Air
19 Sep - 27 Sep	Wizz Air Malta
27 Sep - 07 Oct	Wizz Air Malta
02 Sep - 19 Sep	Ryanair
26 Sep - 30 Sep	Wizz Air Malta
27 Sep - 11 Oct	Wizz Air Malta
23 Sep - 04 Oct	easyJet	direct
28 Sep - 05 Oct	easyJet
27 Sep - 07 Oct	easyJet	direct
27 Sep - 11 Oct	easyJet	direct

Also check the deals for one-way flights from Basel to Thessaloniki 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 Basel to Thessaloniki in September from 130€

Return flights