Lufthansa's 24-hour rule allows travelers to cancel or change their bookings within 24 hours of making the reservation, provided the flight is at least seven days away. For assistance, you can contact 1-844-767-0476 (US OTA) or (+44) 800 208 1075 (UK OTA). FAQ Gender - What is the 24-hour rule with Lufthansa? Showing 1-1 of 1 https://www.goodreads.com