Ultra-low-cost, Allegiant, has launched four nonstop flights from Portland, connecting the West Coast and the Heartland.

Allegiant begins service today from Cincinnati/Northern Kentucky International Airport (CVG) to Gulf Shores, Alabama and ...

Allegiant Airlines has launched twice-weekly low-cost flights from Stockton Metropolitan Airport to Denver International Airport. Here's what to know.

It might seem like a worsening economy would be a boon for ultra-budget carriers, but in reality it’s the opposite. People ...