Ultra-low fare carrier Frontier Airlines has returned to Spokane International Airport, marking its first operation at the location since September 2021, with the launch of a new nonstop service to Denver International Airport. The airline, known for its affordability, is offering introductory fares as low as $59. This expansion is part of Frontier's broader strategy to redefine ultra-low-cost air travel by enhancing comfort and convenience without compromising on price. The new service will operate three times a week, and the airline has introduced several upgrades, including UpFront Plus seating for extra comfort and a revamped frequent flyer program called FRONTIER Miles. Frontier is also looking to debut First Class seating later in 2025, providing more options for travelers.