The contributors of Flight-Report published 2 reviews on 1 airlines on the route Chicago - Chicago O'Hare (ORD) → Vienna - Vienna (VIE). The airline with the best average rating is Austrian Airlines with 7.2/10. The average flight time is 8 hours and 45 minutes.
Airlines on this route are:
Frequent travelers recommend "SWISS Lounge" at ORD for entertainment/wifi and comfort.
The airport of Chicago (ORD) is rated as moderately efficient (security/immigration/police checks); make sure to arrive with sufficient time.