In 2026, Frontier Airlines remains the primary carrier offering a true "unlimited" flight pass with its GoWild! All-You-Can-Fly Pass. For an annual fee (typically starting at $599, though often on sale for $349), passholders can book an unlimited number of flights to any of Frontier's domestic and international destinations. The catch is the booking window: domestic flights can only be confirmed one day before departure, and international flights 10 days before. Taxes and fees (usually $15–$30 per leg) are not included, and bags and seats cost extra. Other airlines have followed suit with "subscription" models rather than unlimited passes; for instance, Alaska Airlines offers a "Flight Pass" for a fixed monthly fee that allows for 6 to 24 flights per year within the West Coast. These passes are ideal for spontaneous travelers or digital nomads who can handle the "last-minute" nature of the bookings.