| West Islip to Noventa Vicentina | 4,092.86 mi (6,586.82 km) |
| West Islip to Novi di Modena | 4,078.58 mi (6,563.84 km) |
| West Islip to Novi Ligure | 3,991.32 mi (6,423.41 km) |
| West Islip to Nuoro | 4,163.35 mi (6,700.27 km) |
| West Islip to Occhiobello | 4,106.88 mi (6,609.39 km) |
| West Islip to Oderzo | 4,117.14 mi (6,625.90 km) |
| West Islip to Oggiono | 3,983.29 mi (6,410.48 km) |
| West Islip to Olbia | 4,150.27 mi (6,679.21 km) |
| West Islip to Oleggio | 3,958.21 mi (6,370.13 km) |
| West Islip to Olgiate Comasco | 3,966.83 mi (6,384.00 km) |
| West Islip to Olgiate Olona | 3,967.95 mi (6,385.79 km) |
| West Islip to Omegna | 3,939.82 mi (6,340.53 km) |
| West Islip to Opera | 3,990.19 mi (6,421.59 km) |
| West Islip to Oppeano | 4,077.35 mi (6,561.86 km) |
| West Islip to Orbassano | 3,929.08 mi (6,323.24 km) |
