Porter Airlines operates out of Terminal 3 at Toronto Pearson International Airport. If you are arriving at Terminal 1, you can catch the free Airport Link train to Terminal 3, where you can proceed through security and to your gate. If you are departing from Terminal 3, you can catch a ride service such as a taxi, limo, or ride share to the airport and be dropped off curbside at doors D, E, or F. Alternatively, you can take the UP Express from Union Station to Toronto-Pearson Airport in just 25 minutes.