Cheapest return flights from Chicago to Vienna in September from $561

Best time to book flights for Chicago (ORD) to Vienna (VIE) flights at AirHint

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

Return flights

09 Sep - 23 Sep Turkish Airlines
09 Sep - 16 Sep Turkish Airlines
23 Sep - 30 Sep Turkish Airlines
24 Sep - 22 Oct Turkish Airlines
11 Sep - 17 Sep Turkish Airlines
12 Sep - 18 Sep Turkish Airlines
01 Sep - 22 Sep Turkish Airlines
24 Sep - 01 Oct Turkish Airlines
24 Sep - 03 Oct Turkish Airlines
23 Sep - 03 Oct Turkish Airlines
25 Sep - 02 Oct Turkish Airlines
06 Sep - 13 Sep Turkish Airlines
27 Sep - 04 Oct Turkish Airlines
09 Sep - 16 Sep Austrian Airlines direct
09 Sep - 23 Sep Austrian Airlines direct
23 Sep - 30 Sep Austrian Airlines direct
23 Sep - 03 Oct Austrian Airlines direct
25 Sep - 02 Oct Austrian Airlines direct

Also check the deals for one-way flights from Chicago to Vienna in September.

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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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