To guarantee its passengers comfort, United Airlines Seat Selection provides a range of options for choosing a seat. Although there is no charge for standard economy seats, travelers have the option to select preferred seating, which includes seats nearer the front of the aircraft. Economy Plus seats with legroom are offered for an extra charge under the United Airlines Seat Selection program. Seating options for premium cabin passengers, such as United First or Business, are more spacious. You can choose your seat when you book or via the United Airlines app.