| Seaford to Oerlinghausen | 378.43 mi (609.02 km) |
| Seaford to Oestrich-Winkel | 351.91 mi (566.34 km) |
| Seaford to Offenburg | 384.82 mi (619.30 km) |
| Seaford to Oftersheim | 388.25 mi (624.84 km) |
| Seaford to Ohrdruf | 463.95 mi (746.66 km) |
| Seaford to Ohringen | 431.13 mi (693.84 km) |
| Seaford to Olbernhau | 578.17 mi (930.47 km) |
| Seaford to Olching | 533.23 mi (858.15 km) |
| Seaford to Oldenburg | 382.15 mi (615.01 km) |
| Seaford to Oldenburg in Holstein | 513.90 mi (827.05 km) |
| Seaford to Olfen | 321.60 mi (517.57 km) |
| Seaford to Olpe | 337.31 mi (542.84 km) |
| Seaford to Olsberg | 366.04 mi (589.09 km) |
| Seaford to Oranienburg | 577.37 mi (929.19 km) |
| Seaford to Ortenberg | 393.85 mi (633.84 km) |
