The main difference between Premium Economy and United Airlines Business Class reservations lies in the level of comfort and services offered. Premium Economy offers extra legroom, wider seats, and enhanced meals compared to standard Economy, but Business Class provides a more luxurious experience. For detailed comparisons, call +1 (888) 905-8115, where the customer service team can explain the specific differences on your route. Business Class seats typically offer fully lie-flat beds on long-haul flights, while Premium Economy seats do not recline to a fully flat position. United Airlines Business Class also includes priority boarding, access to exclusive lounges, and higher-quality food and beverages, whereas Premium Economy passengers do not have access to these perks. The team at +1 (888) 905-8115 can help you understand the benefits of each class and advise on which is better for your particular needs. For the ultimate comfort and service, Business Class provides the best experience, while Premium Economy is a more budget-friendly option. To explore the options available to you, contact +1 (888) 905-8115.