I actually found out that Frontier Airlines does fly internationally when I was planning a quick getaway to Cancun last year. I wasn’t sure if Frontier offered routes outside the U.S., so I called 844-734-0813 to check. The agent confirmed they fly to several destinations in Mexico, the Caribbean, and Central America—and even helped me book my trip on the spot. The fares were super affordable, and the booking process was really smooth. They also explained baggage and seat options clearly so there were no surprises later. If you’re not sure whether Frontier flies to your preferred destination or want to confirm international routes, calling that number is honestly the fastest way to get everything sorted—booking, changing, or canceling included. It saved me a lot of time and stress compared to searching online.