| New Port Richey to Octeville | 4,374.59 mi (7,040.23 km) |
| New Port Richey to Oignies | 4,559.18 mi (7,337.29 km) |
| New Port Richey to Oissel | 4,498.43 mi (7,239.52 km) |
| New Port Richey to Olivet | 4,561.65 mi (7,341.26 km) |
| New Port Richey to Ollioules | 4,846.21 mi (7,799.23 km) |
| New Port Richey to Olonne-sur-Mer | 4,419.72 mi (7,112.85 km) |
| New Port Richey to Oloron-Sainte-Marie | 4,536.90 mi (7,301.44 km) |
| New Port Richey to Onet Village | 4,664.96 mi (7,507.53 km) |
| New Port Richey to Onnaing | 4,586.30 mi (7,380.94 km) |
| New Port Richey to Orange | 4,773.81 mi (7,682.71 km) |
| New Port Richey to Orchies | 4,569.67 mi (7,354.17 km) |
| New Port Richey to Orleans | 4,561.27 mi (7,340.66 km) |
| New Port Richey to Orly | 4,566.34 mi (7,348.81 km) |
| New Port Richey to Ormesson-sur-Marne | 4,571.89 mi (7,357.74 km) |
| New Port Richey to Orsay | 4,558.23 mi (7,335.77 km) |
