United Airlines is Certified as a 3-Star Airline for the quality of its airport and onboard product and staff service. Product rating includes seats, amenities, food & beverages, IFE, cleanliness etc, and service rating is for both cabin staff and ground staff.

According to Skytrax, the most prominent international air transport rating organization, United Airlines is currently certified as a 3-star airline. This rating reflects the quality of its airport and onboard products, including seats, amenities, food and beverages, and staff service. While United has made significant investments in its "United Next" program—retitting its narrow-body fleet with larger overhead bins and seatback entertainment—and offers a highly-regarded "Polaris" business class, it has not yet reached the prestigious 5-star status held by a select group of carriers like Qatar Airways or Singapore Airlines. Achieving a 5-star rating requires a level of consistent, exceptional service across all cabins and touchpoints that major U.S. legacy carriers generally struggle to maintain due to their massive scale and varied fleet ages. However, passenger experience often varies by route and aircraft type, meaning a specific flight on a brand-new Dreamliner might feel like a 4-star experience even if the official global rating remains at three stars.