| Asenovgrad to Novi di Modena | 727.06 mi (1,170.09 km) |
| Asenovgrad to Novi Ligure | 827.89 mi (1,332.36 km) |
| Asenovgrad to Nuoro | 815.27 mi (1,312.06 km) |
| Asenovgrad to Occhiobello | 694.84 mi (1,118.23 km) |
| Asenovgrad to Oderzo | 667.78 mi (1,074.69 km) |
| Asenovgrad to Oggiono | 813.58 mi (1,309.34 km) |
| Asenovgrad to Olbia | 798.14 mi (1,284.48 km) |
| Asenovgrad to Oleggio | 844.72 mi (1,359.45 km) |
| Asenovgrad to Olgiate Comasco | 831.59 mi (1,338.32 km) |
| Asenovgrad to Olgiate Olona | 833.34 mi (1,341.14 km) |
| Asenovgrad to Omegna | 859.32 mi (1,382.94 km) |
| Asenovgrad to Opera | 814.11 mi (1,310.18 km) |
| Asenovgrad to Oppeano | 719.56 mi (1,158.02 km) |
| Asenovgrad to Orbassano | 890.73 mi (1,433.49 km) |
| Asenovgrad to Orbetello | 698.43 mi (1,124.02 km) |
