| Hopkins to Oerlinghausen | 4,303.81 mi (6,926.31 km) |
| Hopkins to Oestrich-Winkel | 4,366.26 mi (7,026.82 km) |
| Hopkins to Offenburg | 4,430.94 mi (7,130.91 km) |
| Hopkins to Oftersheim | 4,414.02 mi (7,103.67 km) |
| Hopkins to Ohrdruf | 4,422.56 mi (7,117.42 km) |
| Hopkins to Ohringen | 4,453.25 mi (7,166.81 km) |
| Hopkins to Olbernhau | 4,515.70 mi (7,267.32 km) |
| Hopkins to Olching | 4,561.10 mi (7,340.39 km) |
| Hopkins to Oldenburg | 4,238.59 mi (6,821.35 km) |
| Hopkins to Oldenburg in Holstein | 4,274.62 mi (6,879.34 km) |
| Hopkins to Olfen | 4,271.46 mi (6,874.25 km) |
| Hopkins to Olpe | 4,316.62 mi (6,946.92 km) |
| Hopkins to Olsberg | 4,324.27 mi (6,959.23 km) |
| Hopkins to Oranienburg | 4,417.28 mi (7,108.93 km) |
| Hopkins to Ortenberg | 4,386.92 mi (7,060.07 km) |
