Frontier says new routes from Fort Lauderdale, Florida, will depart for Detroit, Houston, Chicago and Charlotte.

Frontier is expanding service across 21 airports in the U.S. and Caribbean. Here are the new routes the carrier will service.

Frontier Airlines announced the launch of 20 new flights, some from competitor Spirit's hubs, as Spirit struggles to survive. Here's where.

Frontier Airlines has announced 20 new routes that include several scheduled flights at Detroit Metro Airport.

Frontier Airlines is adding two new routes from DFW International Airport to the southeast U.S., the airline said Tuesday. The Denver-based carrier will begin flying three times per week to Florida’s ...

Phoenix Sky Harbor is one of three airports to get Frontier Airlines' new flights to this Pacific Northwest city. Here's how to get the cheapest fare.