Allegiant Air has announced a significant expansion, introducing 44 new seasonal routes this summer and adding service to three new destinations: Chicago, Houston, and Boston. This growth brings the airline's total offerings to over 500 routes. The new flights are set to commence in May and June, operating twice weekly.

Allegiant Air is expanding its network with 10 new routes across 14 different airports, enhancing its presence in Los Angeles and Knoxville, Tennessee. Each of these bases will gain three new nonstop routes, with additional routes extending to Florida airports serving Jacksonville and St. Petersburg.