| Saint-Léonard Aerodrome | |
| Iata: | YSL |
| Icao: | CYSL |
| Type: | Public |
| Owner-Oper: | J.D. Irving Ltd.[1] |
| Location: | Saint-Léonard, New Brunswick |
| Timezone: | AST |
| Summer: | ADT |
| Elevation-F: | 794 |
| Coordinates: | 47.1572°N -67.8364°W |
| Pushpin Map: | Canada New Brunswick#Canada |
| Pushpin Label: | CYSL |
| Pushpin Map Caption: | Location in New Brunswick |
| R1-Number: | 18/36 |
| R1-Length-F: | 4,021 |
| R1-Surface: | Asphalt |
| Stat1-Header: | Aircraft movements |
| Stat1-Data: | 831 |
| Stat-Year: | 2006 |
| Footnotes: | Source: Canada Flight Supplement Movements from Statistics Canada[2] |
Saint-Léonard Aerodrome is located 4NM southeast of Saint-Léonard, New Brunswick, Canada.
The city of Edmundston purchased the airport for $1 and subsequently transferred the ownership to Madawaska Airport Authority. In July 2015, Madawaska Airport Authority announced it would shut down some of the airport operations. J.D. Irving and local community groups intervened to halted the closure of the airport. In October 2017, J.D. Irving purchased the airport for $100,000.
The airport had regularly scheduled flights to Montreal (Dorval) on Air Nova for part of the 1980s and 1990s.