| Canton to Oerlinghausen | 4,079.13 mi (6,564.72 km) |
| Canton to Oestrich-Winkel | 4,118.12 mi (6,627.48 km) |
| Canton to Offenburg | 4,166.90 mi (6,705.98 km) |
| Canton to Oftersheim | 4,162.06 mi (6,698.19 km) |
| Canton to Ohrdruf | 4,195.13 mi (6,751.42 km) |
| Canton to Ohringen | 4,203.75 mi (6,765.28 km) |
| Canton to Olbernhau | 4,298.60 mi (6,917.92 km) |
| Canton to Olching | 4,310.25 mi (6,936.67 km) |
| Canton to Oldenburg | 4,024.61 mi (6,476.99 km) |
| Canton to Oldenburg in Holstein | 4,084.21 mi (6,572.90 km) |
| Canton to Olfen | 4,038.65 mi (6,499.58 km) |
| Canton to Olpe | 4,078.32 mi (6,563.43 km) |
| Canton to Olsberg | 4,092.29 mi (6,585.90 km) |
| Canton to Oranienburg | 4,220.79 mi (6,792.71 km) |
| Canton to Ortenberg | 4,147.14 mi (6,674.18 km) |
