Upgrading on Lufthansa in 2026 can be achieved through several official channels: Fixed Price, Bidding, or Miles. The most direct way is a fixed-price upgrade, which you can often purchase via "My Bookings" on the Lufthansa website or app shortly after booking or during check-in. Alternatively, Lufthansa offers a "Bid Upgrade" system where you can name your price; if your bid is accepted (usually 24–48 hours before departure), your credit card is charged and you are moved to a higher cabin. You can also use Miles & More award miles to "buy" an upgrade, provided there is specific award availability in the higher class. For the best chance, check your booking early, as availability for Premium Economy, Business, or First Class upgrades is limited and often operates on a first-come, first-served basis for fixed-price offers. Last-minute upgrades are also sometimes available at the airport check-in counter or the gate.