Cheapest return flights from Chicago to Vienna in May from 547€

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

Return flights

12 May - 26 May Icelandair
09 May - 23 May Frontier Airlines
01 May - 22 May Turkish Airlines
07 May - 16 May Turkish Airlines
19 May - 29 Jun Spirit Airlines
14 May - 18 May Frontier Airlines
19 May - 30 May Spirit Airlines
25 May - 04 Jun Aer Lingus
15 May - 30 May Frontier Airlines
21 May - 25 May Spirit Airlines
20 May - 30 Jun Icelandair
12 May - 26 May Austrian Airlines direct
24 May - 03 Jun Alaska Airlines
01 May - 22 May Austrian Airlines direct
30 May - 14 Jun Aer Lingus
19 May - 29 Jun United direct
31 May - 14 Jun Aer Lingus
25 May - 04 Jun Austrian Airlines direct

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

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