Union Pearson Express covers the distance between Pearson Airport and Union Station in downtown Toronto in 25 minutes. The ride is free for children under 12 years of age. The train is available between 5:27 am, and 12:57 am every 15 minutes. You can purchase a ticket at the free UP Express mobile app, ticket vending machines at all stations (Pearson, Weston, Bloor, or Union), or customer service counters in terminal 1 and 3. Get to the UP Express station in terminal 1 next to the terminal link train.