Allegiant Air is a low-cost American airline that primarily serves leisure travelers. If you're interested in booking tickets with Allegiant Air, here are some key things to know:

• Booking Tickets: You can book Allegiant Air tickets through their official website (allegiantair.com), Allegiant's mobile app, or by calling their customer service.

• Route Network: Allegiant Air specialises in connecting smaller airports to popular leisure destinations. They often operate nonstop flights to vacation destinations such as Las Vegas, Orlando, Phoenix, and others.

• Fare Types: Allegiant offers different fare types, including Basic Economy and Standard Economy. The Basic Economy fares typically come with fewer amenities, such as limited or no seat selection and no carry-on bags included in the fare. Standard Economy fares include more flexibility and options.

• Additional Fees: Allegiant Air is known for its à la carte pricing model, where many services that are included with other airlines may have an extra fee. This includes services like seat selection, carry-on bags, checked bags, priority boarding, and more. It's essential to review the fees associated with your ticket to understand the total cost of your travel.