| Leiria to Noventa Vicentina | 1,100.17 mi (1,770.55 km) |
| Leiria to Novi di Modena | 1,064.10 mi (1,712.50 km) |
| Leiria to Novi Ligure | 961.21 mi (1,546.91 km) |
| Leiria to Nuoro | 958.42 mi (1,542.43 km) |
| Leiria to Occhiobello | 1,097.04 mi (1,765.52 km) |
| Leiria to Oderzo | 1,153.30 mi (1,856.05 km) |
| Leiria to Oggiono | 1,007.60 mi (1,621.57 km) |
| Leiria to Olbia | 965.44 mi (1,553.73 km) |
| Leiria to Oleggio | 970.78 mi (1,562.32 km) |
| Leiria to Olgiate Comasco | 990.06 mi (1,593.34 km) |
| Leiria to Olgiate Olona | 982.97 mi (1,581.94 km) |
| Leiria to Omegna | 966.76 mi (1,555.85 km) |
| Leiria to Opera | 993.21 mi (1,598.41 km) |
| Leiria to Oppeano | 1,083.88 mi (1,744.34 km) |
| Leiria to Orbassano | 907.39 mi (1,460.31 km) |
