| Collinsville to Oerlinghausen | 4,503.82 mi (7,248.20 km) |
| Collinsville to Oestrich-Winkel | 4,551.08 mi (7,324.26 km) |
| Collinsville to Offenburg | 4,605.26 mi (7,411.44 km) |
| Collinsville to Oftersheim | 4,596.45 mi (7,397.27 km) |
| Collinsville to Ohrdruf | 4,621.24 mi (7,437.17 km) |
| Collinsville to Ohringen | 4,637.47 mi (7,463.28 km) |
| Collinsville to Olbernhau | 4,721.40 mi (7,598.37 km) |
| Collinsville to Olching | 4,744.78 mi (7,635.99 km) |
| Collinsville to Oldenburg | 4,445.23 mi (7,153.91 km) |
| Collinsville to Oldenburg in Holstein | 4,496.25 mi (7,236.01 km) |
| Collinsville to Olfen | 4,466.06 mi (7,187.42 km) |
| Collinsville to Olpe | 4,507.78 mi (7,254.58 km) |
| Collinsville to Olsberg | 4,519.61 mi (7,273.61 km) |
| Collinsville to Oranienburg | 4,635.69 mi (7,460.43 km) |
| Collinsville to Ortenberg | 4,577.37 mi (7,366.56 km) |
