| Lac-à-la-Tortue Airport | |
| Tc: | CSL3 |
| Type: | Private |
| Operator: | Bel Air Laurentian Aviation Inc |
| Location: | Lac-à-la-Tortue, Quebec |
| Timezone: | EST |
| Summer: | EDT |
| Elevation-F: | 434 |
| Coordinates: | 46.6217°N -72.6303°W |
| Pushpin Map: | Canada Quebec |
| Pushpin Label: | CSL3 |
| Pushpin Map Caption: | Location in Quebec |
| R1-Number: | 03/21 |
| R1-Length-F: | 3,000 |
| R1-Surface: | Asphalt |
| R2-Number: | 16/34 |
| R2-Length-F: | 2,000 |
| R2-Surface: | Asphalt |
| Footnotes: | Source: Canada Flight Supplement |
Lac-à-la-Tortue Airport is located 2.6NM east of Lac-à-la-Tortue, Quebec, Canada.
The airport is classified as an airport of entry by Nav Canada and is staffed by the Canada Border Services Agency (CBSA). CBSA officers at this airport can handle general aviation aircraft only, with no more than 15 passengers.