| Plougastel-Daoulas to Novi di Modena | 761.84 mi (1,226.07 km) |
| Plougastel-Daoulas to Novi Ligure | 671.89 mi (1,081.30 km) |
| Plougastel-Daoulas to Nuoro | 874.26 mi (1,406.98 km) |
| Plougastel-Daoulas to Occhiobello | 791.59 mi (1,273.94 km) |
| Plougastel-Daoulas to Oderzo | 811.64 mi (1,306.22 km) |
| Plougastel-Daoulas to Oggiono | 668.88 mi (1,076.47 km) |
| Plougastel-Daoulas to Olbia | 852.41 mi (1,371.82 km) |
| Plougastel-Daoulas to Oleggio | 641.23 mi (1,031.96 km) |
| Plougastel-Daoulas to Olgiate Comasco | 651.60 mi (1,048.64 km) |
| Plougastel-Daoulas to Olgiate Olona | 651.59 mi (1,048.63 km) |
| Plougastel-Daoulas to Omegna | 624.07 mi (1,004.34 km) |
| Plougastel-Daoulas to Opera | 673.06 mi (1,083.19 km) |
| Plougastel-Daoulas to Oppeano | 763.67 mi (1,229.01 km) |
| Plougastel-Daoulas to Orbassano | 609.54 mi (980.96 km) |
| Plougastel-Daoulas to Orbetello | 857.66 mi (1,380.28 km) |
