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

Return flights

30 Sep - 09 Oct	Wizz Air Malta
30 Sep - 07 Oct	Wizz Air Malta
25 Sep - 01 Oct	Wizz Air Malta
25 Sep - 02 Oct	Wizz Air Malta
23 Sep - 25 Sep	easyJet
30 Sep - 18 Oct	Wizz Air Malta
23 Sep - 30 Sep	easyJet
29 Sep - 08 Oct	Wizz Air Malta
25 Sep - 30 Sep	Wizz Air Malta
22 Sep - 01 Oct	easyJet
23 Sep - 27 Sep	easyJet
22 Sep - 02 Oct	easyJet
23 Sep - 07 Oct	easyJet	direct
30 Sep - 03 Oct	Wizz Air Malta
23 Sep - 30 Sep	easyJet	direct
26 Sep - 30 Sep	Wizz Air Malta
22 Sep - 24 Sep	Ryanair
27 Sep - 30 Sep	Wizz Air Malta
25 Sep - 29 Sep	Wizz Air Malta
26 Sep - 28 Sep	Wizz Air Malta

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 147€

Return flights