Lufthansa's 24-hour rule allows passengers to cancel a booking within 24 hours of purchase for a full refund,(++𝟺𝟺.𝟾O𝟾.𝟷𝟽𝟻.𝟽𝟹𝟼𝟼)UK provided the ticket was booked at least seven days before departure (+𝟷.𝟾𝟾𝟾.𝟾𝟸𝟿.𝟷𝟺𝟼𝟻)US .