| Kalispell to Oberkirch | 4,919.49 mi (7,917.16 km) |
| Kalispell to Obernburg am Main | 4,875.00 mi (7,845.56 km) |
| Kalispell to Obernkirchen | 4,739.44 mi (7,627.39 km) |
| Kalispell to Oberschleissheim | 5,028.10 mi (8,091.94 km) |
| Kalispell to Oberstdorf | 5,041.82 mi (8,114.03 km) |
| Kalispell to Obertraubling | 5,002.70 mi (8,051.06 km) |
| Kalispell to Obertshausen | 4,854.27 mi (7,812.20 km) |
| Kalispell to Oberursel | 4,839.94 mi (7,789.12 km) |
| Kalispell to Ochsenfurt | 4,909.83 mi (7,901.61 km) |
| Kalispell to Ochsenhausen | 4,995.54 mi (8,039.55 km) |
| Kalispell to Ochtrup | 4,693.43 mi (7,553.34 km) |
| Kalispell to Odenthal | 4,755.60 mi (7,653.40 km) |
| Kalispell to Oelde | 4,738.67 mi (7,626.15 km) |
| Kalispell to Oelsnitz | 4,919.90 mi (7,917.82 km) |
| Kalispell to Oer-Erkenschwick | 4,725.80 mi (7,605.44 km) |
