Upon arriving at Terminal 1, you'll find Frontier’s check-in zone located on the departure level, right as you enter the main lobby. There are multiple self-service kiosks available for travelers who’ve checked in online or need to print boarding passes and bag tags.
For those who haven’t pre-paid for luggage or printed boarding passes, it’s best to arrive earlier to allow time for any delays. At the frontier airlines sfo terminal, things generally move quickly—but lines can form during the early morning or late afternoon waves of departures.
💡 Tip: Download the Frontier Airlines app beforehand. It allows you to check in, select or purchase seats, and access your mobile boarding pass with ease.
Remember: Frontier follows a low-cost model where every add-on counts. If you haven’t already purchased a carry-on, checked bag, or selected a seat in advance, you’ll want to allow extra time for this at the terminal.