| Identifier: | CMSKY |
| NAS ID: | CMSKY |
| Name: | CMSKY |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ILLINOIS |
| ICAO Region: | K5 |
| Latitude: | 41-24-47.000N (41.413100) |
| Longitude: | 087-52-38.000W (-87.877200) |
| Magnetic Variance: | 3.9 W as of 9/30/2025 |
| High ARTCC Area: | ZAU |
| Low ARTCC Area: | ZAU |
| Published: | Yes |
| Charts: | |
| Pitch: | Yes |
| Catch: | Yes |
| SUA ATCAA: | No |
| CONTROLLER HIGH |
| CONTROLLER LOW |
| ENROUTE HIGH |
| ENROUTE LOW |
| SID |