| London Colney to Noventa Vicentina | 699.66 mi (1,125.99 km) |
| London Colney to Novi di Modena | 697.02 mi (1,121.75 km) |
| London Colney to Novi Ligure | 636.60 mi (1,024.51 km) |
| London Colney to Nuoro | 912.03 mi (1,467.77 km) |
| London Colney to Occhiobello | 718.82 mi (1,156.83 km) |
| London Colney to Oderzo | 711.37 mi (1,144.84 km) |
| London Colney to Oggiono | 600.59 mi (966.56 km) |
| London Colney to Olbia | 879.43 mi (1,415.30 km) |
| London Colney to Oleggio | 586.85 mi (944.44 km) |
| London Colney to Olgiate Comasco | 588.03 mi (946.34 km) |
| London Colney to Olgiate Olona | 593.05 mi (954.42 km) |
| London Colney to Omegna | 565.18 mi (909.56 km) |
| London Colney to Opera | 616.68 mi (992.45 km) |
| London Colney to Oppeano | 686.63 mi (1,105.03 km) |
| London Colney to Orbassano | 586.59 mi (944.02 km) |
