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

Return flights

16 Sep - 25 Sep	Spirit Airlines
09 Sep - 16 Sep	Turkish Airlines
22 Sep - 05 Oct	Turkish Airlines
14 Sep - 28 Sep	Turkish Airlines
05 Sep - 13 Sep	Turkish Airlines
12 Sep - 27 Sep	Turkish Airlines
19 Sep - 27 Sep	Turkish Airlines

Also check the deals for one-way flights from Chicago 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 Chicago to Skopje in September from 512€

Return flights