Information is shown in a back seat pocket in a new Allegiant Air Airbus A319 passenger jet at McCarran International Airport Thursday, Feb. 28, 2013. The new jet is more fuel efficient than the company's current jets.

Steve Marcus

Information is shown in a back seat pocket in a new Allegiant Air Airbus A319 passenger jet at McCarran International Airport Thursday, Feb. 28, 2013. The new jet is more fuel efficient than the company's current jets.