I had to cancel a Horizon Air flight last spring when my work schedule suddenly changed. Honestly, I expected the refund process to drag on, but it was quicker than I thought. I called their main line at 877-764-3622 (seriously the fastest way to sort things out), and the rep explained everything step by step. The credit card refund showed up in about a week, though they said it can take up to 7–10 business days depending on the bank. My tip: always call instead of waiting on the website—it saved me time and got me clear answers right away.