Niagara Falls tickets at Ticketmaster.
From the May 12th Instagram post by Penn and Teller Live:
Lots of upcoming tour dates in addition to our regular Vegas shows. If you can’t make it to #Vegas come see us on tour! Links in bio to our tour page on the P&T website.
From the July 14th post at the Sid Lorraine Hat and Rabbit Club Facebook group:
Penn & Teller Niagara Falls tickets now on sale! November 18th! Thanks to David Sutherland for keeping an eye on this!!!