Visit the Frontier website and check in online to print a boarding pass. In the My Trip/Check-in tab, enter the passenger’s last name and the flight reservation code to locate the reservation, and then select the option to print the boarding pass. Between 24 and 60 minutes before the scheduled departure time of the flight, you can check in online. Use the Frontier self-service kiosks or the full-service Frontier check-in desk to print a boarding pass at the airport of departure.
Scan your confirmation, key in your reservation code, or swipe your passport, ID, or credit card to use an automated Frontier kiosk to check in and print a boarding pass. Before printing the boarding card, you can inspect your itinerary, choose better seats, buy carry-on bags, and check bags at the kiosk. Use the standard counter check-in for more customer assistance. There are Frontier customer support representatives at all airports of departure.
For domestic flights, you have until 45 minutes before takeoff to check in and print your boarding card; for international flights, you have until 60 minutes. The airline advises checking in two hours or more before departure. The airline advises adding checked bags with online check-in to benefit from quicker service at the airport, the lowest checked bag rates, and lower carry-on luggage taxes.