| Oldsmar to Noventa Vicentina | 5,059.22 mi (8,142.03 km) |
| Oldsmar to Novi di Modena | 5,041.38 mi (8,113.31 km) |
| Oldsmar to Novi Ligure | 4,948.95 mi (7,964.57 km) |
| Oldsmar to Nuoro | 5,091.88 mi (8,194.60 km) |
| Oldsmar to Occhiobello | 5,071.23 mi (8,161.36 km) |
| Oldsmar to Oderzo | 5,088.18 mi (8,188.63 km) |
| Oldsmar to Oggiono | 4,948.37 mi (7,963.63 km) |
| Oldsmar to Olbia | 5,083.59 mi (8,181.25 km) |
| Oldsmar to Oleggio | 4,920.81 mi (7,919.28 km) |
| Oldsmar to Olgiate Comasco | 4,931.19 mi (7,935.98 km) |
| Oldsmar to Olgiate Olona | 4,931.22 mi (7,936.04 km) |
| Oldsmar to Omegna | 4,903.69 mi (7,891.73 km) |
| Oldsmar to Opera | 4,952.59 mi (7,970.42 km) |
| Oldsmar to Oppeano | 5,043.12 mi (8,116.11 km) |
| Oldsmar to Orbassano | 4,885.76 mi (7,862.87 km) |
