When are Boyne Passport ski resorts closing for the season? The 2025/26 Ski season at Boyne Passport ski resorts ends at 17/05/2026. Check out this list of projected closing dates for Boyne Passport ski resorts to help you plan the rest of your ski season and get those late-season turns in. All projected closing dates are subject to change at each resort's discretion depending on the snow conditions and other factors.