| Box Elder to Orangevale (California) | 1,009.36 mi (1,624.40 km) |
| Box Elder to Orchards (Washington) | 955.67 mi (1,538.00 km) |
| Box Elder to Orcutt (California) | 1,120.03 mi (1,802.51 km) |
| Box Elder to Oregon (Ohio) | 1,006.74 mi (1,620.18 km) |
| Box Elder to Oregon (Wisconsin) | 690.11 mi (1,110.62 km) |
| Box Elder to Oregon City (Oregon) | 959.14 mi (1,543.59 km) |
| Box Elder to Orem (Utah) | 513.37 mi (826.20 km) |
| Box Elder to Orinda (California) | 1,081.66 mi (1,740.76 km) |
| Box Elder to Orland Park (Illinois) | 788.78 mi (1,269.42 km) |
| Box Elder to Orlando (Florida) | 1,613.42 mi (2,596.55 km) |
| Box Elder to Ormond Beach (Florida) | 1,581.58 mi (2,545.30 km) |
| Box Elder to Oro Valley (Arizona) | 913.24 mi (1,469.71 km) |
| Box Elder to Oroville (California) | 1,001.20 mi (1,611.27 km) |
| Box Elder to Oshkosh (Wisconsin) | 719.93 mi (1,158.62 km) |
| Box Elder to Oskaloosa (Iowa) | 564.34 mi (908.22 km) |
