Mesa's once-sleepy secondary airport is starting to feel a lot less secondary. Phoenix-Mesa Gateway Airport closed out 2025 with more than two million travelers streaming through its single terminal, the busiest calendar year in the airport's modern history. The surge tracks with booming leisure demand and a growing menu of nonstop flights to smaller and mid-sized cities, and airport leaders say the record-setting year has nudged Gateway into a new phase of expansion.
Officials recorded 2,036,218 passengers in 2025, as reported by KTAR. The airport's communications director told KTAR the total beat the previous annual mark by nearly 8 percent. That capstone figure followed a year in which monthly and fiscal totals repeatedly set new highs for the East Valley facility.
Allegiant Expands Routes Out Of Gateway
Allegiant, the dominant low-cost carrier at Gateway, rolled out several new nonstop routes from Mesa starting in February, including service to John Wayne/Orange County, La Crosse, Wisconsin, and Bloomington/Normal, Illinois, according to PR Newswire. The airport's schedule now lists about 45 nonstop destinations on Allegiant and Sun Country, per the airport authority Mesa Gateway Airport. Those additions helped push spring and summer months to new peaks and drew more travelers from the East Valley and well beyond its typical catchment area.
Major Airfield Work Planned
The Mesa Gateway Airport Authority has more than $130 million in airfield construction projects teed up over the next five years, including a Phase 2 reconstruction of one 10,000-foot runway, according to industry reporting from AviationPros. The authority is also moving forward with a new TSA checked-baggage inspection facility that airport officials say will roughly triple the number of bags processed each hour, an upgrade reported by local coverage at KTAR. Together, the projects are intended to add resilience as the single-terminal operation absorbs more flights and faster turnarounds.
What Officials Say
"The passenger record reflects the airport’s important role in the region’s air transportation system," J. Brian O'Neill, executive director and CEO of the Mesa Gateway Airport Authority, said in a statement to AviationPros. Airport executives point to low fares, point-to-point schedules and new infrastructure as the formula that kept growth on an upward trajectory. Local leaders add that the airport's expansion feeds private development on airport property and helps draw more visitors into the East Valley economy.
The airfield dates to 1941, when it opened as a flight school for the Army Air Corps, and scheduled commercial service at the site began in 2007, according to historical records on Wikipedia. The Charles L. Williams Terminal sits at 6033 South Sossaman Road, and for now Gateway offers a smaller, convenience-focused alternative to Sky Harbor as it scales capacity and routes to meet demand, according to Mesa Gateway Airport.
