Allegiant Air is adding flights at Mesa Gateway Airport with new and expanded routes. Allegiant is adding planes to its fleet, which could lead to new Mesa flight announcements. Travelers who plan to ...

The merger of Allegiant and Sun Country, the two airlines serving Mesa Gateway Airport, could mean big changes for travelers.

A trio of new Allegiant Air routes will connect more leisure travelers to Mesa Gateway Airport. The airport is getting three new routes in February 2026, including La Crosse, Wisconsin, a new ...

New 2026 data shows just 3% of Allegiant Air flights operate on Tuesdays. Here’s why the ULCC treats Tuesday as a near off-day.

During the winter 2025-26 season, Allegiant offers 462 nonstop scheduled routes, while Sun Country operates about 100. The ...

Travelers who plan to fly through Mesa Gateway Airport in spring 2025 have a lot of new flights to choose from. Allegiant Air is offering new and expanded routes out of Mesa Gateway Airport for spring ...