| Sredets to Novi di Modena | 832.43 mi (1,339.67 km) |
| Sredets to Novi Ligure | 934.86 mi (1,504.51 km) |
| Sredets to Nuoro | 935.74 mi (1,505.92 km) |
| Sredets to Occhiobello | 799.62 mi (1,286.86 km) |
| Sredets to Oderzo | 766.36 mi (1,233.33 km) |
| Sredets to Oggiono | 915.21 mi (1,472.88 km) |
| Sredets to Olbia | 917.71 mi (1,476.92 km) |
| Sredets to Oleggio | 947.74 mi (1,525.24 km) |
| Sredets to Olgiate Comasco | 933.48 mi (1,502.28 km) |
| Sredets to Olgiate Olona | 936.05 mi (1,506.43 km) |
| Sredets to Omegna | 961.08 mi (1,546.71 km) |
| Sredets to Opera | 917.88 mi (1,477.19 km) |
| Sredets to Oppeano | 822.47 mi (1,323.64 km) |
| Sredets to Orbassano | 996.97 mi (1,604.48 km) |
| Sredets to Orbetello | 814.60 mi (1,310.98 km) |
