Guided Tour + Tower Access
Entry, a guide for about 90 minutes, and the lift up one of the towers. The version that answers the questions you will have.
€47/ person
Check availability Viator
Entry is timed to the half hour and sells out weeks ahead in summer. Tower tickets go first and there is no door queue to fall back on. Book it before you book the flights back.
THE BIG QUESTION
We compared both, factor by factor.
The audio guide is included with most tickets and it is good, so a human guide is a want rather than a need. Take the guided version if you like the history of how the thing gets built, which is genuinely the interesting part. Otherwise book entry plus a tower, go at 5pm, and let the windows do the talking.
See the tour →Yes. Every ticket is a timed slot and there is no walk-up window worth queueing at. Same-day tickets appear occasionally, usually at 9am on a Tuesday in February.
Two to four weeks off-season, four to eight between June and September. Tower slots sell out roughly a fortnight before the basilica does, so book those first.
There is no ticket office at the door. Everything is sold online, and touts outside are selling you a marked-up version of the same website.
See everything worth booking, and everything you can skip.