| Uniondale to Oberkirch | 3,858.39 mi (6,209.48 km) |
| Uniondale to Obernburg am Main | 3,863.71 mi (6,218.04 km) |
| Uniondale to Obernkirchen | 3,794.49 mi (6,106.63 km) |
| Uniondale to Oberschleissheim | 4,010.55 mi (6,454.35 km) |
| Uniondale to Oberstdorf | 3,983.68 mi (6,411.12 km) |
| Uniondale to Obertraubling | 4,012.45 mi (6,457.41 km) |
| Uniondale to Obertshausen | 3,844.73 mi (6,187.50 km) |
| Uniondale to Oberursel | 3,830.49 mi (6,164.58 km) |
| Uniondale to Ochsenfurt | 3,906.69 mi (6,287.21 km) |
| Uniondale to Ochsenhausen | 3,949.44 mi (6,356.00 km) |
| Uniondale to Ochtrup | 3,720.86 mi (5,988.14 km) |
| Uniondale to Odenthal | 3,748.90 mi (6,033.28 km) |
| Uniondale to Oelde | 3,768.40 mi (6,064.66 km) |
| Uniondale to Oelsnitz | 3,967.48 mi (6,385.04 km) |
| Uniondale to Oer-Erkenschwick | 3,738.02 mi (6,015.76 km) |
