| North Tonawanda to Opwijk | 3,740.19 mi (6,019.26 km) |
| North Tonawanda to Ostend | 3,683.06 mi (5,927.31 km) |
| North Tonawanda to Oud-Heverlee | 3,763.15 mi (6,056.21 km) |
| North Tonawanda to Oud-Turnhout | 3,760.38 mi (6,051.75 km) |
| North Tonawanda to Oudenaarde | 3,720.99 mi (5,988.36 km) |
| North Tonawanda to Oudenburg | 3,687.47 mi (5,934.41 km) |
| North Tonawanda to Oupeye | 3,805.06 mi (6,123.65 km) |
| North Tonawanda to Overijse | 3,759.51 mi (6,050.35 km) |
| North Tonawanda to Overpelt | 3,780.22 mi (6,083.68 km) |
| North Tonawanda to Paal | 3,776.36 mi (6,077.47 km) |
| North Tonawanda to Peer | 3,784.28 mi (6,090.21 km) |
| North Tonawanda to Pepinster | 3,816.33 mi (6,141.79 km) |
| North Tonawanda to Peruwelz | 3,730.55 mi (6,003.74 km) |
| North Tonawanda to Perwez | 3,775.48 mi (6,076.05 km) |
| North Tonawanda to Philippeville | 3,778.45 mi (6,080.83 km) |
