 | Airports: United States: St John Airport | |
| Airport name: | St John Airport |
| Airport code (ICAO): | 4MD9 |
| Latitude: | 39.4806 |
| Longitude: | -76.7606 |
| Height above sea: | 461 ft / 140 m |
| Country: | United States - North America |
| Region: | Maryland |
| City: | Owings Mills |
| Airlines scheduled services: | no |