| Wood Dale to Oerlinghausen | 4,264.92 mi (6,863.73 km) |
| Wood Dale to Oestrich-Winkel | 4,315.18 mi (6,944.60 km) |
| Wood Dale to Offenburg | 4,371.60 mi (7,035.41 km) |
| Wood Dale to Oftersheim | 4,361.08 mi (7,018.49 km) |
| Wood Dale to Ohrdruf | 4,382.71 mi (7,053.30 km) |
| Wood Dale to Ohringen | 4,401.78 mi (7,083.98 km) |
| Wood Dale to Olbernhau | 4,481.69 mi (7,212.59 km) |
| Wood Dale to Olching | 4,509.33 mi (7,257.07 km) |
| Wood Dale to Oldenburg | 4,205.08 mi (6,767.42 km) |
| Wood Dale to Oldenburg in Holstein | 4,253.63 mi (6,845.56 km) |
| Wood Dale to Olfen | 4,228.14 mi (6,804.53 km) |
| Wood Dale to Olpe | 4,270.57 mi (6,872.82 km) |
| Wood Dale to Olsberg | 4,281.60 mi (6,890.58 km) |
| Wood Dale to Oranienburg | 4,393.72 mi (7,071.01 km) |
| Wood Dale to Ortenberg | 4,340.37 mi (6,985.15 km) |
