How far ahead do I have to register for Denali, and what are the fees for 2026?
Denali registration: how far ahead, and what does it cost?
At least 60 days before your start date, and the park enforces it. For 2026 the fee is US$450 (US$350 if you are 24 or younger) plus the US$15 park entrance fee; cancel by 15 February and all but US$100 comes back.
The full answer, kept up to date: How far ahead do I need to register for Denali? The guide chapter: Denali: Permits & costs