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: Go to the Frontier Airlines Check-In Page or open the Frontier Mobile App.

: You must finish checking in and drop off any bags at least 60 minutes before your flight. <img width="678" height="376" src="https://i0.w...

Checking in online is available starting your scheduled departure and closes 60 minutes prior to takeoff. : Go to the Frontier Airlines Check-In Page

: During this process, you can add bags or select a seat. Note that buying these during check-in is typically cheaper than doing so at the airport counter. <img width="678" height="376" src="https://i0.w...

: Once finished, you can print your boarding pass or save a mobile version to your phone. Why You Should Check In Online