Air
- Ottawa Macdonald-Cartier International Airport is less than an hour's drive from most Leeds Grenville destinations.
- Toronto's Pearson International Airport is to the west approximately 3 hours
- Montreal's Trudeau International Airport is 2.5 hours to the east.
- Ogdensburg International Airport is located in New York State with access via the Prescott-Ogdensburg International Bridge.
- Brockville-1000 Islands Regional Tackaberry Airport can accommodate both private and commercial aircraft. It is located just north of Brockville on Airport Road in the Township of Elizabethtown-Kitley. The airport is capable of handling most corporate jet aircraft. It offers two highly accurate Global Navigation Satellite System instrument approach procedures as well as a Non-Directional Beacon approach.
- By flying the GNSS approach to Runway 04, aircraft may land with cloud bases as low as 338 feet above ground and one mile flight visibility. Additional airport features include new, medium intensity runway edge lighting and a lead-in light system to Runway 22. Airport lighting can be completely pilot activated, permitting arrivals and departures throughout the evening hours. Pilots inbound from the United States may arrange their entry clearance into Canada by telephoning 888-CANPASS (226-7277). Notification must be made at least one hour prior to landing.