| Great Falls to Oststeinbek | 4,660.36 mi (7,500.12 km) |
| Great Falls to Ottendorf-Okrilla | 4,883.82 mi (7,859.75 km) |
| Great Falls to Ottersberg | 4,657.94 mi (7,496.24 km) |
| Great Falls to Ottobrunn | 5,000.40 mi (8,047.37 km) |
| Great Falls to Ottweiler | 4,803.53 mi (7,730.53 km) |
| Great Falls to Overath | 4,722.86 mi (7,600.71 km) |
| Great Falls to Oyten | 4,656.56 mi (7,494.02 km) |
| Great Falls to Paderborn | 4,721.59 mi (7,598.66 km) |
| Great Falls to Papenburg | 4,613.39 mi (7,424.54 km) |
| Great Falls to Parchim | 4,709.56 mi (7,579.31 km) |
| Great Falls to Pasewalk | 4,758.47 mi (7,658.01 km) |
| Great Falls to Passau | 5,020.61 mi (8,079.90 km) |
| Great Falls to Pattensen | 4,719.00 mi (7,594.49 km) |
| Great Falls to Pegnitz | 4,903.49 mi (7,891.40 km) |
| Great Falls to Peine | 4,728.34 mi (7,609.54 km) |
