Why Choose Online Check-In with Allegiant Air?

Online check-in is a hassle-free way to secure your boarding pass before arriving at the airport. It’s particularly beneficial for busy Chicago travelers who want to make their journey as efficient as possible. Allegiant Air enables passengers to check in online 24 hours before their flight, allowing you to choose your preferred seat and add any extra services you may need. Here are some reasons why opting for online check-in is a wise choice:

  • Save time by avoiding check-in lines at the airport.
  • Secure your preferred seat early.
  • Make changes to your itinerary without the need to call customer service.

Step-by-Step Guide to Online Check-In

  1. Visit the Allegiant Air website or open the Allegiant Air mobile app.
  2. Click on the “Check-In” link, usually located on the homepage.
  3. Enter your confirmation number, last name, and departure city to access your booking.
  4. Select your seat if you haven't already done so and review any additional services you might want to add.
  5. Print your boarding pass or download it to your mobile device for easy access at the airport.

Tips for International Travelers

  • Ensure your passport and any required visas are valid and meet the entry requirements of your destination.
  • Check the baggage policies for international flights, as they may differ from domestic flights.
  • Familiarize yourself with customs regulations in both the U.S. and your destination country to avoid any surprises.