| Aveiro to Noventa Vicentina | 1,066.65 mi (1,716.60 km) |
| Aveiro to Novi di Modena | 1,031.58 mi (1,660.16 km) |
| Aveiro to Novi Ligure | 928.00 mi (1,493.48 km) |
| Aveiro to Nuoro | 943.78 mi (1,518.87 km) |
| Aveiro to Occhiobello | 1,064.74 mi (1,713.53 km) |
| Aveiro to Oderzo | 1,118.66 mi (1,800.30 km) |
| Aveiro to Oggiono | 971.15 mi (1,562.91 km) |
| Aveiro to Olbia | 948.16 mi (1,525.91 km) |
| Aveiro to Oleggio | 934.44 mi (1,503.84 km) |
| Aveiro to Olgiate Comasco | 953.34 mi (1,534.25 km) |
| Aveiro to Olgiate Olona | 946.70 mi (1,523.57 km) |
| Aveiro to Omegna | 929.29 mi (1,495.55 km) |
| Aveiro to Opera | 958.03 mi (1,541.81 km) |
| Aveiro to Oppeano | 1,050.14 mi (1,690.04 km) |
| Aveiro to Orbassano | 872.38 mi (1,403.96 km) |
