The contributors of Flight-Report published 4 reviews on 1 airlines on the route Vienna - Vienna (VIE) → Chicago - Chicago O'Hare (ORD). The airline with the best average rating is Austrian Airlines with 7.2/10. The average flight time is 9 hours and 58 minutes.
Airlines on this route are:
Frequent travelers recommend "Austrian Airlines Senator Lounge (Non-Schengen - G Gates)" at VIE for entertainment/wifi and services.
The airport of Chicago (ORD) is rated as being moderately efficient (security/immigration/police checks); be patient.