| Ruston to Olympia (Washington) | 1,875.76 mi (3,018.74 km) |
| Ruston to Olympia Heights (Florida) | 877.75 mi (1,412.60 km) |
| Ruston to Omaha (Nebraska) | 631.88 mi (1,016.91 km) |
| Ruston to On Top of the World Designated Place (Florida) | 657.80 mi (1,058.63 km) |
| Ruston to Onalaska (Wisconsin) | 788.38 mi (1,268.77 km) |
| Ruston to Oneida (New York) | 1,174.82 mi (1,890.69 km) |
| Ruston to Oneonta (New York) | 1,178.37 mi (1,896.41 km) |
| Ruston to Ontario (California) | 1,442.40 mi (2,321.33 km) |
| Ruston to Ontario (Oregon) | 1,531.80 mi (2,465.19 km) |
| Ruston to Opa-locka (Florida) | 875.08 mi (1,408.31 km) |
| Ruston to Opelika (Alabama) | 422.58 mi (680.07 km) |
| Ruston to Opelousas (Louisiana) | 142.51 mi (229.34 km) |
| Ruston to Orange (California) | 1,455.65 mi (2,342.64 km) |
| Ruston to Orange (Texas) | 179.26 mi (288.49 km) |
| Ruston to Orange City (Florida) | 717.86 mi (1,155.29 km) |
