| Huntington to Oberkirch | 545.07 mi (877.21 km) |
| Huntington to Obernburg am Main | 519.53 mi (836.11 km) |
| Huntington to Obernkirchen | 437.35 mi (703.85 km) |
| Huntington to Oberschleissheim | 674.05 mi (1,084.78 km) |
| Huntington to Oberstdorf | 671.13 mi (1,080.07 km) |
| Huntington to Obertraubling | 664.60 mi (1,069.56 km) |
| Huntington to Obertshausen | 499.16 mi (803.33 km) |
| Huntington to Oberursel | 484.42 mi (779.60 km) |
| Huntington to Ochsenfurt | 560.43 mi (901.92 km) |
| Huntington to Ochsenhausen | 627.58 mi (1,009.99 km) |
| Huntington to Ochtrup | 362.94 mi (584.09 km) |
| Huntington to Odenthal | 399.05 mi (642.22 km) |
| Huntington to Oelde | 410.68 mi (660.93 km) |
| Huntington to Oelsnitz | 610.27 mi (982.14 km) |
| Huntington to Oer-Erkenschwick | 382.20 mi (615.09 km) |
