The Eiffel Tower's ticketing can be confusing because access to the summit and the two lower levels are sold separately, and the option to climb by stairs is cheaper — but more limited — than taking the lift.
Stairs tickets
Stair access is sold only up to the second floor and does not include the summit; it is the least expensive option and typically has shorter queues than the lift line.
Lift tickets
Lift tickets to the second floor include both lower levels; a separate, more expensive lift ticket adds access to the summit, reached via a second lift from the second floor.
Booking ahead matters
Online tickets are sold in timed slots and are the most reliable way to avoid the long walk-up queues at the base of the tower, especially in summer.
