| Saltcoats to Oerlinghausen | 603.47 mi (971.19 km) |
| Saltcoats to Oestrich-Winkel | 659.26 mi (1,060.98 km) |
| Saltcoats to Offenburg | 731.13 mi (1,176.64 km) |
| Saltcoats to Oftersheim | 707.77 mi (1,139.04 km) |
| Saltcoats to Ohrdruf | 720.62 mi (1,159.72 km) |
| Saltcoats to Ohringen | 746.19 mi (1,200.88 km) |
| Saltcoats to Olbernhau | 822.50 mi (1,323.68 km) |
| Saltcoats to Olching | 853.95 mi (1,374.30 km) |
| Saltcoats to Oldenburg | 549.76 mi (884.76 km) |
| Saltcoats to Oldenburg in Holstein | 627.04 mi (1,009.13 km) |
| Saltcoats to Olfen | 565.93 mi (910.77 km) |
| Saltcoats to Olpe | 609.53 mi (980.94 km) |
| Saltcoats to Olsberg | 619.33 mi (996.72 km) |
| Saltcoats to Oranienburg | 752.95 mi (1,211.75 km) |
| Saltcoats to Ortenberg | 679.74 mi (1,093.93 km) |
