| Ferryhill to Olympia Heights (Florida) | 4,346.48 mi (6,994.98 km) |
| Ferryhill to Omaha (Nebraska) | 4,126.94 mi (6,641.67 km) |
| Ferryhill to On Top of the World Designated Place (Florida) | 4,244.40 mi (6,830.70 km) |
| Ferryhill to Onalaska (Wisconsin) | 3,826.00 mi (6,157.35 km) |
| Ferryhill to Oneida (New York) | 3,296.28 mi (5,304.85 km) |
| Ferryhill to Oneonta (New York) | 3,302.05 mi (5,314.13 km) |
| Ferryhill to Ontario (California) | 5,232.81 mi (8,421.40 km) |
| Ferryhill to Ontario (Oregon) | 4,637.99 mi (7,464.13 km) |
| Ferryhill to Opa-locka (Florida) | 4,333.80 mi (6,974.58 km) |
| Ferryhill to Opelika (Alabama) | 4,178.81 mi (6,725.15 km) |
| Ferryhill to Opelousas (Louisiana) | 4,546.61 mi (7,317.07 km) |
| Ferryhill to Orange (California) | 5,253.17 mi (8,454.16 km) |
| Ferryhill to Orange (Texas) | 4,631.34 mi (7,453.43 km) |
| Ferryhill to Orange City (Florida) | 4,214.17 mi (6,782.04 km) |
| Ferryhill to Orangeburg (South Carolina) | 3,961.73 mi (6,375.79 km) |
