Entrance to St. Peter’s Basilica is completely free. If you want to visit this place with someone or on your own, you can do it without the need for a guide or a reservation, you just need to stand in line in St. Peter’s Square and go through airport-style checks. However, the queues to enter without being part of an organized tour are quite long! so if you don’t want to wait an hour, you can buy tickets online that include a guide with faster access to the basilica.
St. Peter’s Basilica opens its doors at 7am and closes at 7pm in summer (April-September) and 6.30pm in winter (October-March). On Wednesdays the Basilica is closed to the public for the papal audience and then reopens at 1pm.
The best time to visit the Basilica is usually early in the morning from 7 until about 9. You need to remember that to enter you have to respect a dress code that includes covered shoulders and knees 
How about you take a tour?
How can you reach San Pietro from our apartments?
Santa Caterina -> bus 62 or bus 64
Gregorio—> bus 98 or 17 minutes on foot 
Gregory —> bus 98 or 17 minutes on foot Candia 66 -> 14 minutes on foot Candia 89 -> 14 minutes on foot Boezio —> 11 minutes on foot Leone IV -> 12 minute walk Fornaci-> 7 minutes on foot Bonifacio —> 11 minutes on foot Domus Fabiola -> 11 minutes on footAlessandrp III —> 9 minute walk
