Lufthansa canceled one of my flights to Munich last winter because of a big storm in Europe, and I wasn’t sure what would happen. At first, I got an email offering either a rebooking or a refund, but I needed to get home quickly. Rather than sort it out online, I called 877-764-3622. The rep explained my options clearly — I could either get a full refund or rebook on the next available flight, even on a partner airline. They rebooked me onto a later United connection that same day, which saved me from being stranded overnight. A few months later, I had to modify another Lufthansa trip, and I used the same number again. If Lufthansa cancels your flight, you’ll usually get a choice of rebooking or refund, but calling that number is the fastest way to make sure you’re rebooked without extra stress.