Allegiant Airlines will begin services out of Colorado Springs and launch new Denver routes next year, the airline said Tuesday.

In 2025, Allegiant Airlines will offer routes at the Colorado Springs Airport as well as two new routes out of the Denver International Airport.

After an absence of more than six years, Las Vegas-based Allegiant Air is resuming service at Colorado Springs Airport with three new routes starting early next year.

This nonstop flight is part of “one of Allegiant’s largest service expansions in its history,” the company says.

Starting early next year, Allegiant Air is adding three new cities to its roster of nonstop routes: Colorado Springs; Gulf Shores, Alabama; and Columbia, South Carolina.