| Randallstown to Orangeburg (South Carolina) | 464.71 mi (747.88 km) |
| Randallstown to Orangevale (California) | 2,360.01 mi (3,798.07 km) |
| Randallstown to Orchards (Washington) | 2,336.10 mi (3,759.58 km) |
| Randallstown to Orcutt (California) | 2,399.80 mi (3,862.11 km) |
| Randallstown to Oregon (Ohio) | 382.09 mi (614.91 km) |
| Randallstown to Oregon (Wisconsin) | 698.50 mi (1,124.13 km) |
| Randallstown to Oregon City (Oregon) | 2,341.64 mi (3,768.51 km) |
| Randallstown to Orem (Utah) | 1,840.57 mi (2,962.10 km) |
| Randallstown to Orinda (California) | 2,425.47 mi (3,903.42 km) |
| Randallstown to Orland Park (Illinois) | 600.83 mi (966.94 km) |
| Randallstown to Orlando (Florida) | 796.09 mi (1,281.18 km) |
| Randallstown to Ormond Beach (Florida) | 737.73 mi (1,187.25 km) |
| Randallstown to Oro Valley (Arizona) | 1,959.53 mi (3,153.56 km) |
| Randallstown to Oroville (California) | 2,363.25 mi (3,803.29 km) |
| Randallstown to Oshkosh (Wisconsin) | 685.59 mi (1,103.35 km) |
