When Will Sun Country Release 2025 Flights Schedule. Sun country airlines has extended its booking schedule through september 2, 2025, with more than 100 routes up for grabs. Through summer 2025, sun country airlines will operate 116 routes serving 102 airports across the united states, mexico, central america, canada, and the caribbean,.
Sncy) today extended its selling schedule through april 29, 2025, for travelers to book december. Sun country airlines has expanded its booking schedule through april 29, 2025.