Ontario — O
723 airports in Ontario, Canada
O
- SPK-CA-00014Ogoki Post Airport
- CME2Omemee Airport
- SPK-CA-00081Ompah Airport
- CRO2Onward Aviation Heliport
- SPK-CA-00563Opapimiskan Lake Airport
- SPK-CA-00326Orangeville / Brundle Field
- CPV2Orangeville / Castlewood Field
- COL2Orangeville / Laurel Airstrip
- CHW2Orangeville/Headwaters Healthcare Centre Heliport
- SPK-CA-00304Orillia (Ontario Provincial Police) Heliport
- CNJ4Orillia-RAMA Regional Airport
- CNV6Orillia/Lake St John Seaplane Base
- CPU5Orillia/Matchedash Lake Seaplane Base
- CHF4Orono / Hawkefield Aerodrome
- COR3Orono Field
- CYOOOshawa Executive Airport
- SPK-CA-00865Ottawa (Children's Hospital) Heliport
- CPP7Ottawa (Civic Hospital) Heliport
- SPK-CA-00699Ottawa / Carp Airport
- CSF7Ottawa / Casselman (Shea Field)
- SPK-CA-00595Ottawa / Dwyer Hill Heliport
- SPK-CA-00102Ottawa / Manotick (Hope Field)
- CQH2Ottawa / Questral Helicopters Heliport
- CYROOttawa / Rockcliffe Airport
- CTR7Ottawa / Rockcliffe Seaplane Base
- CYOWOttawa Macdonald-Cartier International Airport
- CPR2Ottawa/Embrun Aerodrome
- CCK5Owen Sound (Cook Field)
- SPK-CA-00356Owen Sound (Grey Bruce Health Services) Heliport
- SPK-CA-00941Owen Sound / Billy Bishop Regional Airport