- Ottawa Macdonald-Cartier International AirportIdent: CYOWCountry: Canada
- Ottawa / Carp AirportIdent: CYRPCountry: Canada
- Ottawa / Rockcliffe AirportIdent: CYROCountry: Canada
- Ottawa Municipal AirportIdent: KOWICountry: United States
- Putnam County AirportIdent: KOWXCountry: United States