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: You must finish checking in and drop off any bags at least 60 minutes before your flight.

: Verify your flight itinerary and passenger information. <img width="678" height="376" src="https://i0.w...

: If you have checked bags, you still need to visit the bag drop counter, but having already checked in online speeds up the process. Check-In Deadlines Online/Mobile : 24 hours to 60 minutes before departure. : You must finish checking in and drop

: Once finished, you can print your boarding pass or save a mobile version to your phone. Why You Should Check In Online Check-In Deadlines Online/Mobile : 24 hours to 60

: Frontier charges a significant fee (often around $25 per passenger) to have an agent print your boarding pass at the airport Frontier Help Center.

The image you provided relates to . Utilizing online check-in is one of the best ways to avoid extra fees and streamline your airport experience with this ultra-low-cost carrier. Frontier Airlines: How to Check In Online

Checking in online is available starting your scheduled departure and closes 60 minutes prior to takeoff.