| New Port Richey to Olivares | 4,370.15 mi (7,033.08 km) |
| New Port Richey to Olivenza | 4,296.49 mi (6,914.53 km) |
| New Port Richey to Olot | 4,707.97 mi (7,576.75 km) |
| New Port Richey to Onate | 4,452.36 mi (7,165.37 km) |
| New Port Richey to Onda | 4,620.98 mi (7,436.75 km) |
| New Port Richey to Onteniente | 4,628.48 mi (7,448.82 km) |
| New Port Richey to Orihuela | 4,627.31 mi (7,446.93 km) |
| New Port Richey to Osuna | 4,429.05 mi (7,127.87 km) |
| New Port Richey to Ourense | 4,196.24 mi (6,753.19 km) |
| New Port Richey to Oviedo | 4,279.59 mi (6,887.33 km) |
| New Port Richey to Paiporta | 4,624.82 mi (7,442.92 km) |
| New Port Richey to Pajara | 4,111.70 mi (6,617.15 km) |
| New Port Richey to Palafolls | 4,732.28 mi (7,615.87 km) |
| New Port Richey to Palafrugell | 4,746.65 mi (7,638.99 km) |
| New Port Richey to Palamos | 4,746.63 mi (7,638.97 km) |
