| Fairmount to Orangevale (California) | 2,340.79 mi (3,767.14 km) |
| Fairmount to Orchards (Washington) | 2,261.41 mi (3,639.39 km) |
| Fairmount to Orcutt (California) | 2,410.44 mi (3,879.23 km) |
| Fairmount to Oregon (Ohio) | 379.04 mi (610.01 km) |
| Fairmount to Oregon (Wisconsin) | 663.57 mi (1,067.91 km) |
| Fairmount to Oregon City (Oregon) | 2,269.56 mi (3,652.51 km) |
| Fairmount to Orem (Utah) | 1,825.81 mi (2,938.36 km) |
| Fairmount to Orinda (California) | 2,410.26 mi (3,878.94 km) |
| Fairmount to Orland Park (Illinois) | 600.96 mi (967.16 km) |
| Fairmount to Orlando (Florida) | 1,045.40 mi (1,682.41 km) |
| Fairmount to Ormond Beach (Florida) | 986.90 mi (1,588.26 km) |
| Fairmount to Oro Valley (Arizona) | 2,017.14 mi (3,246.28 km) |
| Fairmount to Oroville (California) | 2,337.27 mi (3,761.47 km) |
| Fairmount to Oshkosh (Wisconsin) | 619.93 mi (997.68 km) |
| Fairmount to Oskaloosa (Iowa) | 846.72 mi (1,362.66 km) |
