How long does Mamma Mia last? Emma December 17, 2020 13:58 Updated Follow If you're a fan of the music of ABBA then don't miss out and book your tickets for Mamma Mia! Mamma Mia has a running time of 2 hours 35 minutes including one interval. Related articles What age is Mamma Mia suitable for? Comments 0 comments Article is closed for comments.