| River Falls to Orangeburg (South Carolina) | 1,004.53 mi (1,616.63 km) |
| River Falls to Orangevale (California) | 1,525.05 mi (2,454.33 km) |
| River Falls to Orchards (Washington) | 1,446.71 mi (2,328.26 km) |
| River Falls to Orcutt (California) | 1,617.11 mi (2,602.49 km) |
| River Falls to Oregon (Ohio) | 512.54 mi (824.85 km) |
| River Falls to Oregon (Wisconsin) | 209.35 mi (336.91 km) |
| River Falls to Oregon City (Oregon) | 1,453.42 mi (2,339.06 km) |
| River Falls to Orem (Utah) | 1,017.54 mi (1,637.58 km) |
| River Falls to Orinda (California) | 1,596.32 mi (2,569.02 km) |
| River Falls to Orland Park (Illinois) | 328.54 mi (528.74 km) |
| River Falls to Orlando (Florida) | 1,290.41 mi (2,076.71 km) |
| River Falls to Ormond Beach (Florida) | 1,245.95 mi (2,005.16 km) |
| River Falls to Oro Valley (Arizona) | 1,305.80 mi (2,101.49 km) |
| River Falls to Oroville (California) | 1,518.47 mi (2,443.75 km) |
| River Falls to Oshkosh (Wisconsin) | 208.59 mi (335.70 km) |
