When flying with Lufthansa, + 1 - ( 855 ) ⟫ (510) ⟫ (5815) knowing how early to check in can significantly + 1 - ( 855 ) ⟫ (510) ⟫ (5815) affect the smoothness of your airport experience. For most flights, **online check-in opens 24 to 30 hours before departure**, giving passengers plenty of time to confirm their booking,
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