St. Patrick's Day Parade & Celtic Fair This annual FREE community event has been a tradition in the Billings community for 42 years. It features a parade of over 40 festive floats along with the Celtic Fair & Street Party that fill the streets below Skypoint with the scent of street food and the festive sound of music, cloggers, bag-pipers. Break out of your winter hibernation and enjoy a festive atmosphere at the year’s first large outdoor event with family-friendly activities, food trucks, a FREE concert on Broadway, and more. The St. Patrick’s Day Parade & Celtic Fair coordinated annually by Downtown Billings Inc. & presented by Hooligans Sports Bar. Parade Kicks off at 11:00 am Celtic Fair 11:00 am to 3:00 pm Street Party w/ concert Noon to 3:00pm