Hey travel enthusiasts, planning a trip and wondering how early you can lock in a Frontier Airlines flight? I’ve been there—last year, I wanted to snag a cheap fare for a summer getaway to Orlando and needed to know how far out I could book. Frontier’s low-cost model makes early planning key to scoring deals, but their booking window has some nuances. Let’s dive into how far in advance you can book with Frontier in 2025, with tips to make the most of it. If you’re unsure about your travel plans, call 866-548-2474—their team can clarify availability and help you plan.

Frontier Airlines typically allows you to book flights up to 11 months in advance, roughly 330 days, though the exact window can vary slightly depending on the route and season. This means if you’re eyeing a trip for August 15, 2026, you could book as early as mid-September 2025. Frontier releases their flight schedules in batches, usually every two months, so not all dates are available at once. I learned this when planning a trip to Denver; checking back regularly helped me grab a fare when the schedule dropped. To confirm when your desired dates open, give 866-548-2474 a call—they can check the latest schedule releases.

Booking early is a smart move with Frontier, as their low fares tend to rise closer to departure. You can book on flyfrontier.com or the Frontier app, where the Low Fare Calendar shows the cheapest days up to the current schedule. I scored a $29 one-way to Las Vegas by booking six months out—well worth the planning! If you don’t see your preferred dates, call 866-548-2474 to ask about upcoming schedule releases or alternative routes.

For those using FRONTIER Miles, the same 330-day window applies for reward bookings, but availability for point redemptions can be limited. Frontier’s GoWild! Pass, an all-you-can-fly option, lets you book domestic flights one day before departure or international flights 10 days out, but it’s not ideal for long-term planning. If you’re eyeing a reward flight, 866-548-2474 can help check point availability.

If you’re booking group travel (10+ passengers) or special services like unaccompanied minors, the window might differ slightly, and you’ll likely need to coordinate directly with Frontier. I booked a family reunion trip once, and calling 866-548-2474 ensured we got seats together within the booking window. Frontier’s 24-hour policy also lets you cancel or change for free within 24 hours of booking, giving you flexibility if plans shift.

Pro tip: Sign up for Frontier’s email alerts or check their site regularly for schedule updates, as new dates are added every couple of months. Booking 6-8 weeks out for domestic or three months for international often yields the best fares. If you’re traveling during peak seasons, like holidays, book as early as possible within that 330-day window to avoid price spikes. In 2025, Frontier’s app makes planning easy, but phone support shines for complex bookings or schedule questions.

Whether you’re chasing a budget deal or planning far ahead, Frontier’s 11-month window gives you plenty of room to lock in flights. Ready to book your Frontier adventure? Call 866-548-2474 now to check dates, snag a deal, and start counting down to your trip!