| Heide to Oria | 1,025.53 mi (1,650.43 km) |
| Heide to Oristano | 987.64 mi (1,589.45 km) |
| Heide to Orta Nova | 939.53 mi (1,512.04 km) |
| Heide to Orte | 824.62 mi (1,327.09 km) |
| Heide to Ortona | 853.48 mi (1,373.55 km) |
| Heide to Orvieto | 804.80 mi (1,295.21 km) |
| Heide to Orzinuovi | 608.89 mi (979.92 km) |
| Heide to Osimo | 766.25 mi (1,233.16 km) |
| Heide to Ospitaletto | 598.60 mi (963.35 km) |
| Heide to Ostuni | 1,009.48 mi (1,624.60 km) |
| Heide to Ottaviano | 955.03 mi (1,536.98 km) |
| Heide to Ovada | 660.62 mi (1,063.16 km) |
| Heide to Ozieri | 940.45 mi (1,513.51 km) |
| Heide to Paceco | 1,132.03 mi (1,821.83 km) |
| Heide to Pachino | 1,241.19 mi (1,997.51 km) |
