| Struer to Oria | 1,177.20 mi (1,894.52 km) |
| Struer to Oristano | 1,145.55 mi (1,843.59 km) |
| Struer to Orta Nova | 1,094.49 mi (1,761.41 km) |
| Struer to Orte | 983.55 mi (1,582.87 km) |
| Struer to Ortona | 1,010.10 mi (1,625.60 km) |
| Struer to Orvieto | 963.88 mi (1,551.22 km) |
| Struer to Orzinuovi | 768.13 mi (1,236.19 km) |
| Struer to Osimo | 923.72 mi (1,486.58 km) |
| Struer to Ospitaletto | 757.91 mi (1,219.74 km) |
| Struer to Ostuni | 1,161.03 mi (1,868.49 km) |
| Struer to Ottaviano | 1,112.22 mi (1,789.94 km) |
| Struer to Ovada | 818.51 mi (1,317.27 km) |
| Struer to Ozieri | 1,098.79 mi (1,768.33 km) |
| Struer to Paceco | 1,291.29 mi (2,078.12 km) |
| Struer to Pachino | 1,398.92 mi (2,251.35 km) |
