| Fergus Falls to Oberkirch | 4,460.17 mi (7,177.96 km) |
| Fergus Falls to Obernburg am Main | 4,435.01 mi (7,137.47 km) |
| Fergus Falls to Obernkirchen | 4,322.61 mi (6,956.57 km) |
| Fergus Falls to Oberschleissheim | 4,590.27 mi (7,387.32 km) |
| Fergus Falls to Oberstdorf | 4,587.43 mi (7,382.75 km) |
| Fergus Falls to Obertraubling | 4,575.52 mi (7,363.58 km) |
| Fergus Falls to Obertshausen | 4,414.35 mi (7,104.21 km) |
| Fergus Falls to Oberursel | 4,399.60 mi (7,080.47 km) |
| Fergus Falls to Ochsenfurt | 4,474.34 mi (7,200.76 km) |
| Fergus Falls to Ochsenhausen | 4,544.78 mi (7,314.12 km) |
| Fergus Falls to Ochtrup | 4,263.56 mi (6,861.53 km) |
| Fergus Falls to Odenthal | 4,313.66 mi (6,942.17 km) |
| Fergus Falls to Oelde | 4,311.29 mi (6,938.35 km) |
| Fergus Falls to Oelsnitz | 4,505.95 mi (7,251.62 km) |
| Fergus Falls to Oer-Erkenschwick | 4,290.71 mi (6,905.24 km) |
