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

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

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".