To select a seat on United Airlines, visit their website or call 1-888-843-5587. Choose your seat during booking or through “My Trips.” Choosing the right seat can make a big difference in your flying experience—whether you’re traveling solo, with family, or on a long-haul international flight. Select a Seat on United Airlines offers multiple ways to select a seat, depending on your ... https://flyrules.com/seat-selection/how-do-i-select-seat-on-united-airlines/