| Bolingbrook to Oerlinghausen | 4,283.02 mi (6,892.86 km) |
| Bolingbrook to Oestrich-Winkel | 4,332.94 mi (6,973.19 km) |
| Bolingbrook to Offenburg | 4,389.12 mi (7,063.60 km) |
| Bolingbrook to Oftersheim | 4,378.79 mi (7,046.98 km) |
| Bolingbrook to Ohrdruf | 4,400.77 mi (7,082.36 km) |
| Bolingbrook to Ohringen | 4,419.52 mi (7,112.53 km) |
| Bolingbrook to Olbernhau | 4,499.89 mi (7,241.88 km) |
| Bolingbrook to Olching | 4,527.05 mi (7,285.58 km) |
| Bolingbrook to Oldenburg | 4,223.32 mi (6,796.78 km) |
| Bolingbrook to Oldenburg in Holstein | 4,272.17 mi (6,875.40 km) |
| Bolingbrook to Olfen | 4,246.12 mi (6,833.47 km) |
| Bolingbrook to Olpe | 4,288.48 mi (6,901.64 km) |
| Bolingbrook to Olsberg | 4,299.60 mi (6,919.54 km) |
| Bolingbrook to Oranienburg | 4,412.19 mi (7,100.73 km) |
| Bolingbrook to Ortenberg | 4,358.26 mi (7,013.94 km) |
