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Frontier Airlines is a major American ultra low-cost airline headquartered in Denver, Colorado. It operates flights to over 100 destinations throughout the United States and 31 international destinations, and employs more than 3,000 staff.
Apr 15, 2024 · Check-In Times: We recommend you arrive at least 2 hours prior to departure to ensure you are checked-in and at the gate by the cutoff times. You must have your boarding pass printed and any baggage checked by the following cutoff times: Domestic Flights: 60 minutes before departure.
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