| Fiesole to Olympia Heights (Florida) | 5,086.87 mi (8,186.52 km) |
| Fiesole to Omaha (Nebraska) | 5,033.70 mi (8,100.96 km) |
| Fiesole to On Top of the World Designated Place (Florida) | 5,023.13 mi (8,083.95 km) |
| Fiesole to Onalaska (Wisconsin) | 4,729.37 mi (7,611.19 km) |
| Fiesole to Oneida (New York) | 4,141.98 mi (6,665.87 km) |
| Fiesole to Oneonta (New York) | 4,140.64 mi (6,663.72 km) |
| Fiesole to Ontario (California) | 6,171.02 mi (9,931.30 km) |
| Fiesole to Ontario (Oregon) | 5,583.41 mi (8,985.62 km) |
| Fiesole to Opa-locka (Florida) | 5,074.95 mi (8,167.35 km) |
| Fiesole to Opelika (Alabama) | 4,999.65 mi (8,046.15 km) |
| Fiesole to Opelousas (Louisiana) | 5,389.69 mi (8,673.86 km) |
| Fiesole to Orange (California) | 6,191.42 mi (9,964.13 km) |
| Fiesole to Orange (Texas) | 5,480.63 mi (8,820.22 km) |
| Fiesole to Orange City (Florida) | 4,985.27 mi (8,023.01 km) |
| Fiesole to Orangeburg (South Carolina) | 4,763.38 mi (7,665.93 km) |
