| East Islip to Opwijk | 3,615.44 mi (5,818.48 km) |
| East Islip to Ostend | 3,557.79 mi (5,725.72 km) |
| East Islip to Oud-Heverlee | 3,638.41 mi (5,855.45 km) |
| East Islip to Oud-Turnhout | 3,639.14 mi (5,856.64 km) |
| East Islip to Oudenaarde | 3,594.53 mi (5,784.83 km) |
| East Islip to Oudenburg | 3,562.08 mi (5,732.61 km) |
| East Islip to Oupeye | 3,681.25 mi (5,924.40 km) |
| East Islip to Overijse | 3,634.23 mi (5,848.73 km) |
| East Islip to Overpelt | 3,659.11 mi (5,888.77 km) |
| East Islip to Paal | 3,653.75 mi (5,880.14 km) |
| East Islip to Peer | 3,662.72 mi (5,894.58 km) |
| East Islip to Pepinster | 3,691.98 mi (5,941.66 km) |
| East Islip to Peruwelz | 3,602.00 mi (5,796.86 km) |
| East Islip to Perwez | 3,649.72 mi (5,873.65 km) |
| East Islip to Philippeville | 3,649.64 mi (5,873.53 km) |
