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Frontier Airlines makes the sky for everyone with its Low Fares Done Right. With over 100 destinations and a route network that connects people to all corners of the country.

Search for a Frontier Airlines round-trip, or one-way flight. You choose from destinations in the U.S., Mexico, Canada, Puerto Rico, Jamaica, or Dominican Republic to find a flight that fits your schedule.

• Unaccompanied minors may travel on any Frontier nonstop flight, including international flights. • Unaccompanied minors cannot be booked on connecting itineraries or on flights that make a stop …

Save time and money with the Frontier mobile app. Use the Frontier mobile app to book and manage travel, check-in, and get your boarding pass quickly and easily.

Frontier is America's Greenest Airline. Our weight-saving tactics and modern, fuel-efficient fleet contribute to an average of 43% fuel savings compared to other U.S. Airlines.

For most flights, you can check in on the Frontier app starting 24 hours before your flight's scheduled departure time. You must have your boarding pass and have any bags checked in by the below …

Everything you should know before your flight on Frontier Airlines.

Frontier Airlines Customer Service. We are here to help you. For help answering general questions, use our live chat for customer support 24/7

Don’t wait to enjoy the Caribbean sun or Mexico’s flavors when you book your flights from Denver (DEN), Philadelphia (PHL) or Chicago (ORD) with Frontier Airlines.