The contributors of Flight-Report published 11 reviews on 2 airlines on the route Amsterdam - Schiphol (AMS) → Chicago - Chicago O'Hare (ORD). The airline with the best average rating is KLM with 7.4/10. The average flight time is 8 hours and 35 minutes.
Airlines on this route are:
Frequent travelers recommend "KLM Crown Lounge" at AMS for comfort and services.
The airport of Chicago (ORD) is rated as being moderately efficient (security/immigration/police checks); be patient.