| Passaic to Opwijk | 3,647.87 mi (5,870.67 km) |
| Passaic to Ostend | 3,590.26 mi (5,777.96 km) |
| Passaic to Oud-Heverlee | 3,670.85 mi (5,907.66 km) |
| Passaic to Oud-Turnhout | 3,671.15 mi (5,908.14 km) |
| Passaic to Oudenaarde | 3,627.16 mi (5,837.35 km) |
| Passaic to Oudenburg | 3,594.56 mi (5,784.88 km) |
| Passaic to Oupeye | 3,713.60 mi (5,976.46 km) |
| Passaic to Overijse | 3,666.74 mi (5,901.04 km) |
| Passaic to Overpelt | 3,691.11 mi (5,940.26 km) |
| Passaic to Paal | 3,685.93 mi (5,931.94 km) |
| Passaic to Peer | 3,694.78 mi (5,946.17 km) |
| Passaic to Pepinster | 3,724.40 mi (5,993.84 km) |
| Passaic to Peruwelz | 3,634.89 mi (5,849.80 km) |
| Passaic to Perwez | 3,682.29 mi (5,926.08 km) |
| Passaic to Philippeville | 3,682.60 mi (5,926.57 km) |
