| New Port Richey East to Noventa Vicentina | 5,050.40 mi (8,127.83 km) |
| New Port Richey East to Novi di Modena | 5,032.67 mi (8,099.30 km) |
| New Port Richey East to Novi Ligure | 4,940.39 mi (7,950.79 km) |
| New Port Richey East to Nuoro | 5,084.20 mi (8,182.23 km) |
| New Port Richey East to Occhiobello | 5,062.47 mi (8,147.27 km) |
| New Port Richey East to Oderzo | 5,079.21 mi (8,174.19 km) |
| New Port Richey East to Oggiono | 4,939.57 mi (7,949.47 km) |
| New Port Richey East to Olbia | 5,075.77 mi (8,168.67 km) |
| New Port Richey East to Oleggio | 4,912.09 mi (7,905.24 km) |
| New Port Richey East to Olgiate Comasco | 4,922.41 mi (7,921.86 km) |
| New Port Richey East to Olgiate Olona | 4,922.48 mi (7,921.97 km) |
| New Port Richey East to Omegna | 4,894.93 mi (7,877.63 km) |
| New Port Richey East to Opera | 4,943.88 mi (7,956.40 km) |
| New Port Richey East to Oppeano | 5,034.31 mi (8,101.94 km) |
| New Port Richey East to Orbassano | 4,877.22 mi (7,849.12 km) |
