| Burr Ridge to Oerlinghausen | 4,273.60 mi (6,877.70 km) |
| Burr Ridge to Oestrich-Winkel | 4,323.38 mi (6,957.80 km) |
| Burr Ridge to Offenburg | 4,379.47 mi (7,048.07 km) |
| Burr Ridge to Oftersheim | 4,369.20 mi (7,031.56 km) |
| Burr Ridge to Ohrdruf | 4,391.34 mi (7,067.17 km) |
| Burr Ridge to Ohringen | 4,409.95 mi (7,097.13 km) |
| Burr Ridge to Olbernhau | 4,490.52 mi (7,226.79 km) |
| Burr Ridge to Olching | 4,517.47 mi (7,270.17 km) |
| Burr Ridge to Oldenburg | 4,213.97 mi (6,781.73 km) |
| Burr Ridge to Oldenburg in Holstein | 4,262.98 mi (6,860.60 km) |
| Burr Ridge to Olfen | 4,236.65 mi (6,818.23 km) |
| Burr Ridge to Olpe | 4,278.98 mi (6,886.35 km) |
| Burr Ridge to Olsberg | 4,290.14 mi (6,904.31 km) |
| Burr Ridge to Oranienburg | 4,402.95 mi (7,085.86 km) |
| Burr Ridge to Ortenberg | 4,348.74 mi (6,998.63 km) |
