AirHint found the following cheapest one-way flights from Chicago (MDW) to Vienna (VIE) in June 2025 (see full year).

One-Way flights

23 Jun	Porter Airlines (Canada) Ltd
22 Jun	Porter Airlines (Canada) Ltd
21 Jun	Porter Airlines (Canada) Ltd
17 Jun	Porter Airlines (Canada) Ltd
19 Jun	Frontier Airlines
18 Jun	Porter Airlines (Canada) Ltd
15 Jun	Porter Airlines (Canada) Ltd
16 Jun	Porter Airlines (Canada) Ltd

Also check the deals for return flights from Chicago to Vienna in June.

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 one-way flights from Chicago to Vienna in June from $547

One-Way flights