| Upminster to Noventa Vicentina | 673.57 mi (1,084.00 km) |
| Upminster to Novi di Modena | 671.22 mi (1,080.22 km) |
| Upminster to Novi Ligure | 611.74 mi (984.51 km) |
| Upminster to Nuoro | 889.21 mi (1,431.04 km) |
| Upminster to Occhiobello | 692.83 mi (1,115.00 km) |
| Upminster to Oderzo | 685.03 mi (1,102.45 km) |
| Upminster to Oggiono | 574.91 mi (925.23 km) |
| Upminster to Olbia | 856.21 mi (1,377.94 km) |
| Upminster to Oleggio | 561.57 mi (903.75 km) |
| Upminster to Olgiate Comasco | 562.49 mi (905.24 km) |
| Upminster to Olgiate Olona | 567.63 mi (913.51 km) |
| Upminster to Omegna | 539.84 mi (868.79 km) |
| Upminster to Opera | 591.25 mi (951.53 km) |
| Upminster to Oppeano | 660.61 mi (1,063.15 km) |
| Upminster to Orbassano | 562.37 mi (905.05 km) |
