505 Züm Bovaird is an express bus route in Brampton, Ontario. This route began service on September 2, 2014. The headways are 15-17 minutes during peak periods, 16 minutes during weekends, and 20 minutes during weekday off peak. This route does not operate during early mornings on Sundays and late evenings on all days. This route duplicates service with 5 Bovaird and 5A Bovaird (between Mount Pleasant GO and Airport Road) before turning south and duplicating with the 30 Airport Road, and 5A Bovaird.
After terminating at the Airport Loop (Queen Street & Goreway Drive) during the route's initial run, a southern extension along Airport Road was added on September 4, 2018. The route now terminates at Malton GO, just south of Derry Road in Mississauga. Also on the same day, the route no longer interlined with Route 561 Züm Queen West. A new branch, 505A was added on October 31, 2022. This route runs from Trinity Common Terminal to Viscount Station on the Terminal Link Train which services Pearson Airport.
