Absolutely, you can make a Horizon Air reservation both online and over the phone — and honestly, I’ve done both depending on the situation. A few weeks ago, I needed to fly from Seattle to Portland on short notice for a family event. I first tried booking online through the Alaska Airlines website (since Horizon operates under Alaska), and it was super smooth — I could see all the available flights, seat maps, and even filter by fare type.
But here’s where calling made a difference: I realized I needed to add a pet to my booking, and the online system wasn’t giving me that option. So, I decided to call Horizon Air’s reservation line. The agent was genuinely helpful — she walked me through adding the pet, confirmed the kennel requirements, and even helped me select a more convenient flight time.
If you’re booking a straightforward trip, online is quick and easy. But if you’re managing special requests, cancellations, or same-day changes, calling customer service directly is absolutely the best move. It saves time, and you get real-time help from someone who can actually make things happen for you.