| Marathon Aerodrome | |
| Iata: | YSP |
| Icao: | CYSP |
| Type: | Public |
| Operator: | Corporation of the Town of Marathon |
| Location: | Marathon, Ontario |
| Timezone: | EST |
| Summer: | EDT |
| Elevation-F: | 1,032 |
| Coordinates: | 48.7572°N -86.3458°W |
| Pushpin Map: | Canada Ontario |
| Pushpin Label: | CYSP |
| Pushpin Map Caption: | Location in Ontario |
| R1-Number: | 16/34 |
| R1-Length-F: | 3,933 |
| R1-Surface: | Asphalt |
| Footnotes: | Sources: Canada Flight Supplement |
Marathon Aerodrome is located 2.6NM northeast of Marathon, Ontario, Canada.