| Bolton to Oerlinghausen | 476.44 mi (766.75 km) |
| Bolton to Oestrich-Winkel | 508.98 mi (819.13 km) |
| Bolton to Offenburg | 571.36 mi (919.52 km) |
| Bolton to Oftersheim | 555.13 mi (893.39 km) |
| Bolton to Ohrdruf | 587.80 mi (945.98 km) |
| Bolton to Ohringen | 595.59 mi (958.50 km) |
| Bolton to Olbernhau | 696.59 mi (1,121.06 km) |
| Bolton to Olching | 703.22 mi (1,131.72 km) |
| Bolton to Oldenburg | 439.45 mi (707.23 km) |
| Bolton to Oldenburg in Holstein | 542.91 mi (873.72 km) |
| Bolton to Olfen | 430.56 mi (692.92 km) |
| Bolton to Olpe | 467.82 mi (752.88 km) |
| Bolton to Olsberg | 483.89 mi (778.74 km) |
| Bolton to Oranienburg | 650.06 mi (1,046.17 km) |
| Bolton to Ortenberg | 536.38 mi (863.22 km) |
