| Fontana to Oerlinghausen | 1,134.18 mi (1,825.28 km) |
| Fontana to Oestrich-Winkel | 1,014.11 mi (1,632.06 km) |
| Fontana to Offenburg | 916.66 mi (1,475.22 km) |
| Fontana to Oftersheim | 964.34 mi (1,551.96 km) |
| Fontana to Ohrdruf | 1,036.76 mi (1,668.50 km) |
| Fontana to Ohringen | 940.44 mi (1,513.50 km) |
| Fontana to Olbernhau | 1,011.87 mi (1,628.44 km) |
| Fontana to Olching | 853.52 mi (1,373.61 km) |
| Fontana to Oldenburg | 1,217.59 mi (1,959.52 km) |
| Fontana to Oldenburg in Holstein | 1,272.09 mi (2,047.24 km) |
| Fontana to Olfen | 1,134.74 mi (1,826.18 km) |
| Fontana to Olpe | 1,082.66 mi (1,742.37 km) |
| Fontana to Olsberg | 1,095.63 mi (1,763.24 km) |
| Fontana to Oranienburg | 1,156.14 mi (1,860.62 km) |
| Fontana to Ortenberg | 1,022.64 mi (1,645.79 km) |
