I flew Lufthansa First Class from Los Angeles to Frankfurt once as a bucket-list trip, and the ticket was pricey — about $9,000 round-trip when I booked. The private terminal in Frankfurt, the chauffeur service to the plane, and the incredible onboard dining really made it feel special though. I wouldn’t have figured out how to snag that deal on my own, so I called 877-764-3622 to ask about availability and whether I could mix miles with cash. The agent walked me through different options, including award space, and helped me lock it in. If you’re paying cash, it can easily run $7,000–$12,000 depending on the route and timing. But for a once-in-a-lifetime experience, it’s unforgettable. If you ever need to instantly book, cancel, or modify a Lufthansa flight — especially something like First Class — that number is the best way to handle it quickly.