UP Express service modified Started Until Tue Mar 17 UP Express service is suspended due to a police investigation west of Union Station. There is GO train service between Union Station and Malton GO on the Kitchener line. You may take a GO bus shuttle between Malton GO and Pearson Airport. Customers travelling between Union Station, Bloor GO, Mount Dennis GO, and Weston GO may use TTC.UP Express - Police Investigation Started Until Tue Mar 17 There is a police investigation west of Union Station and UP Express service is currently suspended. Customers at Union Station, Bloor GO and Mount Dennis GO may take the Kitchener line to Malton GO to connect with shuttle bus service to Pearson. Customers at Pearson may connect with local transit service into downtown.