| Great Sankey to Oerlinghausen | 483.14 mi (777.54 km) |
| Great Sankey to Oestrich-Winkel | 511.64 mi (823.40 km) |
| Great Sankey to Offenburg | 571.54 mi (919.80 km) |
| Great Sankey to Oftersheim | 557.15 mi (896.65 km) |
| Great Sankey to Ohrdruf | 593.35 mi (954.91 km) |
| Great Sankey to Ohringen | 597.98 mi (962.35 km) |
| Great Sankey to Olbernhau | 702.90 mi (1,131.20 km) |
| Great Sankey to Olching | 705.42 mi (1,135.26 km) |
| Great Sankey to Oldenburg | 448.34 mi (721.53 km) |
| Great Sankey to Oldenburg in Holstein | 553.86 mi (891.36 km) |
| Great Sankey to Olfen | 436.21 mi (702.01 km) |
| Great Sankey to Olpe | 472.26 mi (760.03 km) |
| Great Sankey to Olsberg | 489.33 mi (787.49 km) |
| Great Sankey to Oranienburg | 659.10 mi (1,060.71 km) |
| Great Sankey to Ortenberg | 540.33 mi (869.57 km) |
