| Sidcup to Noventa Vicentina | 673.66 mi (1,084.16 km) |
| Sidcup to Novi di Modena | 670.65 mi (1,079.30 km) |
| Sidcup to Novi Ligure | 609.72 mi (981.24 km) |
| Sidcup to Nuoro | 885.21 mi (1,424.61 km) |
| Sidcup to Occhiobello | 692.66 mi (1,114.73 km) |
| Sidcup to Oderzo | 686.05 mi (1,104.09 km) |
| Sidcup to Oggiono | 574.11 mi (923.95 km) |
| Sidcup to Olbia | 852.53 mi (1,372.02 km) |
| Sidcup to Oleggio | 560.11 mi (901.41 km) |
| Sidcup to Olgiate Comasco | 561.43 mi (903.54 km) |
| Sidcup to Olgiate Olona | 566.38 mi (911.50 km) |
| Sidcup to Omegna | 538.47 mi (866.58 km) |
| Sidcup to Opera | 590.02 mi (949.54 km) |
| Sidcup to Oppeano | 660.53 mi (1,063.01 km) |
| Sidcup to Orbassano | 559.62 mi (900.62 km) |
