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

Return flights

15 Sep - 20 Sep	Lufthansa
05 Sep - 30 Sep	Lufthansa
23 Sep - 30 Sep	Lufthansa
18 Sep - 22 Sep	Austrian Airlines
27 Sep - 03 Oct	Lufthansa
28 Sep - 03 Oct	Lufthansa
29 Sep - 03 Oct	Lufthansa
27 Sep - 04 Oct	Lufthansa
29 Sep - 11 Oct	easyJet
18 Sep - 21 Sep	Lufthansa
12 Sep - 15 Sep	AJet
19 Sep - 21 Sep	Lufthansa
20 Sep - 26 Sep	Lufthansa
05 Sep - 14 Sep	Lufthansa
12 Sep - 14 Sep	Lufthansa
27 Sep - 11 Oct	Lufthansa

Also check the deals for one-way flights from Basel to Skopje 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 Skopje in September from $202

Return flights