| Menomonee Falls to Orangevale (California) | 1,743.59 mi (2,806.04 km) |
| Menomonee Falls to Orchards (Washington) | 1,693.88 mi (2,726.04 km) |
| Menomonee Falls to Orcutt (California) | 1,812.96 mi (2,917.68 km) |
| Menomonee Falls to Oregon (Ohio) | 260.65 mi (419.47 km) |
| Menomonee Falls to Oregon (Wisconsin) | 65.80 mi (105.89 km) |
| Menomonee Falls to Oregon City (Oregon) | 1,699.73 mi (2,735.46 km) |
| Menomonee Falls to Orem (Utah) | 1,227.47 mi (1,975.43 km) |
| Menomonee Falls to Orinda (California) | 1,812.46 mi (2,916.88 km) |
| Menomonee Falls to Orland Park (Illinois) | 107.32 mi (172.71 km) |
| Menomonee Falls to Orlando (Florida) | 1,081.69 mi (1,740.80 km) |
| Menomonee Falls to Ormond Beach (Florida) | 1,032.91 mi (1,662.31 km) |
| Menomonee Falls to Oro Valley (Arizona) | 1,444.37 mi (2,324.49 km) |
| Menomonee Falls to Oroville (California) | 1,741.61 mi (2,802.85 km) |
| Menomonee Falls to Oshkosh (Wisconsin) | 64.26 mi (103.42 km) |
| Menomonee Falls to Oskaloosa (Iowa) | 264.31 mi (425.37 km) |
