To stop your Lufthansa Miles & More miles from expiring in 2026, the most effective methods are achieving elite status or using a co-branded Miles & More credit card. Standard miles expire 36 months after they are earned, at the end of that specific quarter. However, if you achieve Frequent Traveller, Senator, or HON Circle status, your miles are protected from expiration for as long as you maintain that status. For non-status members, holding a Miles & More credit card (available in many countries through partners like Barclays or DKB) provides "mileage protection," provided you make at least one qualifying purchase each month and have held the card for a minimum of three months. Another 2026 strategy is to subscribe to the Miles & More newsletter, which provides an "early warning" summary of miles due to expire two months in advance. Once miles have expired, they generally cannot be reinstated, so it is vital to either use them for a flight, a hotel stay, or "WorldShop" merchandise before the 36-month deadline if you do not have status or a credit card.