| Hjorring to Oria | 1,220.51 mi (1,964.23 km) |
| Hjorring to Oristano | 1,214.72 mi (1,954.90 km) |
| Hjorring to Orta Nova | 1,143.07 mi (1,839.59 km) |
| Hjorring to Orte | 1,041.96 mi (1,676.87 km) |
| Hjorring to Ortona | 1,062.04 mi (1,709.19 km) |
| Hjorring to Orvieto | 1,023.03 mi (1,646.42 km) |
| Hjorring to Orzinuovi | 833.52 mi (1,341.42 km) |
| Hjorring to Osimo | 977.81 mi (1,573.64 km) |
| Hjorring to Ospitaletto | 822.79 mi (1,324.16 km) |
| Hjorring to Ostuni | 1,204.23 mi (1,938.02 km) |
| Hjorring to Ottaviano | 1,165.10 mi (1,875.04 km) |
| Hjorring to Ovada | 887.93 mi (1,428.99 km) |
| Hjorring to Ozieri | 1,167.02 mi (1,878.13 km) |
| Hjorring to Paceco | 1,351.01 mi (2,174.23 km) |
| Hjorring to Pachino | 1,452.56 mi (2,337.68 km) |
