| Parsippany to Orbetello | 4,218.02 mi (6,788.24 km) |
| Parsippany to Oria | 4,570.38 mi (7,355.31 km) |
| Parsippany to Oristano | 4,189.42 mi (6,742.23 km) |
| Parsippany to Orta Nova | 4,455.04 mi (7,169.70 km) |
| Parsippany to Orte | 4,268.69 mi (6,869.80 km) |
| Parsippany to Ortona | 4,360.26 mi (7,017.16 km) |
| Parsippany to Orvieto | 4,247.50 mi (6,835.69 km) |
| Parsippany to Orzinuovi | 4,062.04 mi (6,537.22 km) |
| Parsippany to Osimo | 4,279.75 mi (6,887.59 km) |
| Parsippany to Ospitaletto | 4,062.91 mi (6,538.62 km) |
| Parsippany to Ostuni | 4,559.14 mi (7,337.23 km) |
| Parsippany to Ottaviano | 4,419.12 mi (7,111.88 km) |
| Parsippany to Ovada | 4,031.55 mi (6,488.15 km) |
| Parsippany to Ozieri | 4,184.35 mi (6,734.07 km) |
| Parsippany to Paceco | 4,440.17 mi (7,145.76 km) |
