<Table> Porter Airlines <Tr> <Td colspan="2"> </Td> </Tr> <Tr> <Td colspan="2"> <Table> <Tr> <Th> IATA </Th> <Th> ICAO </Th> <Th> Callsign </Th> </Tr> <Tr> <Td> PD </Td> <Td> POE </Td> <Td> PORTER </Td> </Tr> </Table> </Td> </Tr> <Tr> <Th> Founded </Th> <Td> February 2 , 2006 </Td> </Tr> <Tr> <Th> Commenced operations </Th> <Td> October 23 , 2006 </Td> </Tr> <Tr> <Th> Hubs </Th> <Td> Billy Bishop Toronto City Airport </Td> </Tr> <Tr> <Th> Focus cities </Th> <Td> <Ul> <Li> Halifax Stanfield International Airport </Li> <Li> Montréal - Pierre Elliott Trudeau International Airport </Li> <Li> Ottawa Macdonald - Cartier International Airport </Li> </Ul> </Td> </Tr> <Tr> <Th> Frequent - flyer program </Th> <Td> VIPorter </Td> </Tr> <Tr> <Th> Fleet size </Th> <Td> 29 </Td> </Tr> <Tr> <Th> Destinations </Th> <Td> 24 </Td> </Tr> <Tr> <Th> Parent company </Th> <Td> Porter Aviation Holdings Inc . </Td> </Tr> <Tr> <Th> Headquarters </Th> <Td> Billy Bishop Toronto City Airport , Toronto , Ontario , Canada </Td> </Tr> <Tr> <Th> Key people </Th> <Td> Robert Deluce ( CEO / President ) Donald J. Carty ( Chairman ) </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.flyporter.com </Td> </Tr> </Table>
where does porter fly out of in toronto
Billy Bishop Toronto City Airport