Premium economy's big selling point is more space. The seats are an inch or two wider on average than the typical coach seat, and the rows are farther apart, offering several more inches of legroom. Most premium economy seats recline, and many have footrests.

In 2026, the primary differences between standard and premium economy center on physical space, service quality, and airport perks. Standard economy typically offers a "seat pitch" (legroom) of 30–31 inches, whereas Premium Economy increases this to 35–38 inches, providing roughly 5–7 inches of extra room. The seats are also wider—often by 1–2 inches—and offer a significantly deeper recline, sometimes including adjustable footrests or leg rests. Beyond the seat, Premium Economy passengers usually receive a higher tier of service, including "elevated" meals served on real chinaware with metal cutlery, complimentary alcoholic beverages, and a larger entertainment screen. On the ground, the upgrade often includes Priority Check-in, Priority Boarding (Group 2 or 3), and sometimes an increased baggage allowance. While it does not offer the "lie-flat" bed of Business Class, it provides a "middle ground" that is increasingly popular for 2026 long-haul travelers who want to arrive refreshed without paying the multi-thousand dollar premium for a full business suite.