AirHint found the following cheapest return flights from Chicago (MDW) to Vienna (VIE) in May 2026 (see full year).

Return flights

25 May - 04 Jun	Porter Airlines (Canada) Ltd
24 May - 03 Jun	Condor
25 May - 24 Jun	Condor
25 May - 22 Jun	Condor
26 May - 25 Jun	Condor
10 May - 14 May	Delta
14 May - 17 May	Delta
30 May - 27 Jun	Air France

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

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 Vienna in May from 715€

Return flights