ALLEGIANT AIR JUST ADDED 15 LEISURE ROUTES FOR 2021 WITH A NEW SHORTEST ROUTE THAT'S UNDER 200 NAUTICAL MILES— HERE'S THE FULL LIST

© Markus Mainka / Shutterstock.com Allegiant Air is growing its US presence in 2021 by expanding into new and existing markets. Markus Mainka / Shutterstock.com Ultra-low-cost carrier Allegiant Air is adding 15 new routes to its network to new and existing destinations. Orange County, California and Las Vegas are the focus of the expansion with secondary markets including Grand Rapids, M...