| Blaine to Oerlinghausen | 4,284.91 mi (6,895.89 km) |
| Blaine to Oestrich-Winkel | 4,347.52 mi (6,996.67 km) |
| Blaine to Offenburg | 4,412.33 mi (7,100.96 km) |
| Blaine to Oftersheim | 4,395.30 mi (7,073.56 km) |
| Blaine to Ohrdruf | 4,403.66 mi (7,087.00 km) |
| Blaine to Ohringen | 4,434.51 mi (7,136.66 km) |
| Blaine to Olbernhau | 4,496.72 mi (7,236.77 km) |
| Blaine to Olching | 4,542.36 mi (7,310.23 km) |
| Blaine to Oldenburg | 4,219.62 mi (6,790.82 km) |
| Blaine to Oldenburg in Holstein | 4,255.51 mi (6,848.58 km) |
| Blaine to Olfen | 4,252.62 mi (6,843.93 km) |
| Blaine to Olpe | 4,297.81 mi (6,916.65 km) |
| Blaine to Olsberg | 4,305.41 mi (6,928.89 km) |
| Blaine to Oranienburg | 4,398.19 mi (7,078.20 km) |
| Blaine to Ortenberg | 4,368.12 mi (7,029.80 km) |
