What are the location, dates & hours of Sound On Sound? Updated March 02, 2023 02:30 Seaside Park in Bridgeport, CT September 30 - October 1, 2023 Gates open at 12:30 PM ET each day The festival ends approximately 11:00PM each night Related articles Can I leave/re-enter on the same day? Is there a schedule of performances? Can I bring a child to the festival? If so, how much are tickets? Is there a current map of the festival grounds? How do I get to the festival?