All the airports that Air Transat flights have come from See the airports that Air Transat flight have traveled to / or see all the flights this airline has flown (in and out of SFO)

Montreal-Pierre Elliott Trudeau International Airport. This airport in Canada is also referred to as YUL or sometimes CYUL
Toronto Lester B Pearson International Airport. This airport in Canada is also referred to as YYZ or sometimes CYYZ

All these flight data are available as openly licensed data on the sfomuseum-data GitHub account. If you'd like to read more about our efforts to archive flight data at SFO Museum have a look a the Mills Field weblog posts tagged "flightdata".