Compared to the same four months in 2025, 29,800 fewer services are available, a drop of a fifth. International flights are up by 10%, but domestic services are down by nearly a third. Frontier Has 7,500 Fewer FlightsCredit: Vincenzo PaceWhile far less dramatic than Spirit's decrease, fellow ultra-low-cost operator Frontier has 7,522 fewer flights between January and April. Nonetheless, it has scheduled fewer flights in January (-1%) and particularly March (-8%). Many positive stories exist, including Alaska Airlines (+4%), United Airlines (+4%), Delta Air Lines (+3%), and American Airlines (+3%).