| New Port Richey to Noventa Vicentina | 5,052.11 mi (8,130.58 km) |
| New Port Richey to Novi di Modena | 5,034.38 mi (8,102.05 km) |
| New Port Richey to Novi Ligure | 4,942.11 mi (7,953.55 km) |
| New Port Richey to Nuoro | 5,085.93 mi (8,185.01 km) |
| New Port Richey to Occhiobello | 5,064.19 mi (8,150.02 km) |
| New Port Richey to Oderzo | 5,080.91 mi (8,176.94 km) |
| New Port Richey to Oggiono | 4,941.28 mi (7,952.22 km) |
| New Port Richey to Olbia | 5,077.50 mi (8,171.45 km) |
| New Port Richey to Oleggio | 4,913.80 mi (7,908.00 km) |
| New Port Richey to Olgiate Comasco | 4,924.12 mi (7,924.61 km) |
| New Port Richey to Olgiate Olona | 4,924.20 mi (7,924.73 km) |
| New Port Richey to Omegna | 4,896.64 mi (7,880.38 km) |
| New Port Richey to Opera | 4,945.59 mi (7,959.16 km) |
| New Port Richey to Oppeano | 5,036.02 mi (8,104.69 km) |
| New Port Richey to Orbassano | 4,878.93 mi (7,851.89 km) |
