| Pawtucket to Orbetello | 4,047.35 mi (6,513.58 km) |
| Pawtucket to Oria | 4,400.18 mi (7,081.40 km) |
| Pawtucket to Oristano | 4,017.57 mi (6,465.66 km) |
| Pawtucket to Orta Nova | 4,284.79 mi (6,895.70 km) |
| Pawtucket to Orte | 4,098.26 mi (6,595.51 km) |
| Pawtucket to Ortona | 4,190.18 mi (6,743.44 km) |
| Pawtucket to Orvieto | 4,077.13 mi (6,561.50 km) |
| Pawtucket to Orzinuovi | 3,892.58 mi (6,264.50 km) |
| Pawtucket to Osimo | 4,110.03 mi (6,614.45 km) |
| Pawtucket to Ospitaletto | 3,893.57 mi (6,266.10 km) |
| Pawtucket to Ostuni | 4,389.03 mi (7,063.46 km) |
| Pawtucket to Ottaviano | 4,248.41 mi (6,837.16 km) |
| Pawtucket to Ovada | 3,861.42 mi (6,214.35 km) |
| Pawtucket to Ozieri | 4,012.72 mi (6,457.85 km) |
| Pawtucket to Paceco | 4,268.31 mi (6,869.18 km) |
