| Southampton to Oerlinghausen | 439.60 mi (707.47 km) |
| Southampton to Oestrich-Winkel | 418.11 mi (672.88 km) |
| Southampton to Offenburg | 449.67 mi (723.67 km) |
| Southampton to Oftersheim | 454.47 mi (731.39 km) |
| Southampton to Ohrdruf | 528.70 mi (850.86 km) |
| Southampton to Ohringen | 497.35 mi (800.41 km) |
| Southampton to Olbernhau | 642.92 mi (1,034.68 km) |
| Southampton to Olching | 599.11 mi (964.18 km) |
| Southampton to Oldenburg | 436.84 mi (703.03 km) |
| Southampton to Oldenburg in Holstein | 565.57 mi (910.19 km) |
| Southampton to Olfen | 383.45 mi (617.10 km) |
| Southampton to Olpe | 401.83 mi (646.68 km) |
| Southampton to Olsberg | 429.54 mi (691.28 km) |
| Southampton to Oranienburg | 636.96 mi (1,025.09 km) |
| Southampton to Ortenberg | 459.59 mi (739.64 km) |
