The Book of Mormon in Chicago has been extended through September 8, 2013 which was first scheduled to June 2, 2013.
For the new block of shows (June 4-Sept. 8), Tickets will go on sale at the Bank of America Theatre, 18 W. Monroe. on Monday January 7 at at 10 a.m. at all Broadway In Chicago box offices (24 W. Randolph, 151 W. Randolph, 18 W. Monroe and 175 E. Chestnut).
If you do not wish to stand in long queues, you can purchase them online well in advance. Buy Book Of Mormon Chicago IL Tickets Online at discounted prices, SAVE $10 when you spend $350+, by using code AFF$10.