| Bremerhaven to Oria | 995.48 mi (1,602.07 km) |
| Bremerhaven to Oristano | 942.72 mi (1,517.17 km) |
| Bremerhaven to Orta Nova | 906.50 mi (1,458.87 km) |
| Bremerhaven to Orte | 785.84 mi (1,264.68 km) |
| Bremerhaven to Ortona | 818.64 mi (1,317.48 km) |
| Bremerhaven to Orvieto | 765.62 mi (1,232.14 km) |
| Bremerhaven to Orzinuovi | 566.33 mi (911.43 km) |
| Bremerhaven to Osimo | 730.36 mi (1,175.40 km) |
| Bremerhaven to Ospitaletto | 556.37 mi (895.39 km) |
| Bremerhaven to Ostuni | 979.56 mi (1,576.45 km) |
| Bremerhaven to Ottaviano | 919.29 mi (1,479.45 km) |
| Bremerhaven to Ovada | 615.68 mi (990.85 km) |
| Bremerhaven to Ozieri | 896.02 mi (1,442.00 km) |
| Bremerhaven to Paceco | 1,091.98 mi (1,757.37 km) |
| Bremerhaven to Pachino | 1,204.42 mi (1,938.33 km) |
