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

Return flights

30 Sep - 14 Oct	Turkish Airlines
24 Sep - 14 Oct	Turkish Airlines
26 Sep - 05 Oct	Turkish Airlines
25 Sep - 06 Oct	Spirit Airlines
06 Sep - 13 Sep	United
09 Sep - 16 Sep	United
15 Sep - 22 Sep	United
12 Sep - 19 Sep	United
21 Sep - 28 Sep	United
30 Sep - 07 Oct	United

Also check the deals for one-way flights from Chicago to Dubrovnik 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 Dubrovnik in September from 520€

Return flights