| Identifier: | SLONI |
| NAS ID: | SLONI |
| Name: | SLONI |
| Fix Type: | Civilian |
| Fix Use: | |
| State: | ILLINOIS |
| ICAO Region: | K5 |
| Latitude: | 40-11-06.390N (40.185100) |
| Longitude: | 087-55-15.880W (-87.921100) |
| Magnetic Variance: | 3.8 W as of 9/30/2025 |
| High ARTCC Area: | ZAU |
| Low ARTCC Area: | ZAU |
| Published: | Yes |
| Charts: | |
| Pitch: | No |
| Catch: | No |
| SUA ATCAA: | No |
| CONTROLLER LOW |
| ENROUTE LOW |