I learned the importance of checking in early for a Horizon Air flight the hard way last spring. I was flying from Seattle to Spokane for a weekend trip, and I figured showing up an hour before departure would be fine—it wasn’t. Horizon flights often board early since they use smaller regional aircraft, and by the time I got to the gate, they were already halfway through boarding! Luckily, the gate agent helped me out, but I’ve never cut it that close again.
Now, I always check in online as soon as the 24-hour window opens—it saves so much time. For Horizon Air, I’d say get to the airport at least 90 minutes before a domestic flight and even earlier if you’re checking bags. Their lines can move quickly, but smaller airports sometimes don’t have as many staff.
If you ever need to book, cancel, or modify a Horizon Air flight last minute, calling customer service directly is the fastest way to handle it. The reps can rebook you or adjust your flight right away, especially if you’re already checked in and plans suddenly change. Trust me—being early and prepared makes all the difference.