Frontier Airlines Adds 15 New Routes for Fall to Cities Like Charleston, Denver, and Chicago—and Fares Start at Just $29

Frontier Airlines Adds 15 New Routes for Fall to Cities Like Charleston, Denver, and Chicago—and Fares Start at Just $29

The airline’s network is expanding coast to coast with deals to Denver, Charleston, Chicago, and more.DenisTangneyJr/Getty Images The cityscape of El Paso, Texas.A fall or winter getaway just got cheaper. Starting Oct. 7, low-cost carrier Frontier Airlines is expanding its network with 15 different routes, according to the airline. Best of all, Frontier is celebrating with introductory fares as low as $29.“With new destinations in Texas and Virg…