| Forlimpopoli to Olympia Heights (Florida) | 5,117.02 mi (8,235.04 km) |
| Forlimpopoli to Omaha (Nebraska) | 5,047.79 mi (8,123.63 km) |
| Forlimpopoli to On Top of the World Designated Place (Florida) | 5,050.60 mi (8,128.16 km) |
| Forlimpopoli to Onalaska (Wisconsin) | 4,743.89 mi (7,634.55 km) |
| Forlimpopoli to Oneida (New York) | 4,163.15 mi (6,699.94 km) |
| Forlimpopoli to Oneonta (New York) | 4,162.49 mi (6,698.88 km) |
| Forlimpopoli to Ontario (California) | 6,177.89 mi (9,942.36 km) |
| Forlimpopoli to Ontario (Oregon) | 5,585.80 mi (8,989.48 km) |
| Forlimpopoli to Opa-locka (Florida) | 5,105.04 mi (8,215.77 km) |
| Forlimpopoli to Opelika (Alabama) | 5,023.73 mi (8,084.91 km) |
| Forlimpopoli to Opelousas (Louisiana) | 5,411.94 mi (8,709.68 km) |
| Forlimpopoli to Orange (California) | 6,198.27 mi (9,975.16 km) |
| Forlimpopoli to Orange (Texas) | 5,502.31 mi (8,855.11 km) |
| Forlimpopoli to Orange City (Florida) | 5,013.26 mi (8,068.07 km) |
| Forlimpopoli to Orangeburg (South Carolina) | 4,788.91 mi (7,707.00 km) |
