| Pharr to Oberkirch | 5,566.51 mi (8,958.43 km) |
| Pharr to Obernburg am Main | 5,563.77 mi (8,954.02 km) |
| Pharr to Obernkirchen | 5,480.30 mi (8,819.69 km) |
| Pharr to Oberschleissheim | 5,714.27 mi (9,196.22 km) |
| Pharr to Oberstdorf | 5,693.28 mi (9,162.45 km) |
| Pharr to Obertraubling | 5,711.52 mi (9,191.80 km) |
| Pharr to Obertshausen | 5,544.13 mi (8,922.41 km) |
| Pharr to Oberursel | 5,529.60 mi (8,899.04 km) |
| Pharr to Ochsenfurt | 5,606.10 mi (9,022.15 km) |
| Pharr to Ochsenhausen | 5,656.70 mi (9,103.59 km) |
| Pharr to Ochtrup | 5,410.71 mi (8,707.69 km) |
| Pharr to Odenthal | 5,445.93 mi (8,764.38 km) |
| Pharr to Oelde | 5,458.83 mi (8,785.14 km) |
| Pharr to Oelsnitz | 5,658.56 mi (9,106.58 km) |
| Pharr to Oer-Erkenschwick | 5,431.25 mi (8,740.75 km) |
