| Schofield Barracks to Olympia (Washington) | 2,635.26 mi (4,241.04 km) |
| Schofield Barracks to Olympia Heights (Florida) | 4,856.51 mi (7,815.79 km) |
| Schofield Barracks to Omaha (Nebraska) | 3,817.84 mi (6,144.22 km) |
| Schofield Barracks to On Top of the World Designated Place (Florida) | 4,683.88 mi (7,537.97 km) |
| Schofield Barracks to Onalaska (Wisconsin) | 4,064.70 mi (6,541.51 km) |
| Schofield Barracks to Oneida (New York) | 4,844.47 mi (7,796.42 km) |
| Schofield Barracks to Oneonta (New York) | 4,882.67 mi (7,857.91 km) |
| Schofield Barracks to Ontario (California) | 2,601.21 mi (4,186.25 km) |
| Schofield Barracks to Ontario (Oregon) | 2,807.44 mi (4,518.13 km) |
| Schofield Barracks to Opa-locka (Florida) | 4,858.39 mi (7,818.82 km) |
| Schofield Barracks to Opelika (Alabama) | 4,454.92 mi (7,169.50 km) |
| Schofield Barracks to Opelousas (Louisiana) | 4,088.89 mi (6,580.43 km) |
| Schofield Barracks to Orange (California) | 2,586.56 mi (4,162.66 km) |
| Schofield Barracks to Orange (Texas) | 3,993.60 mi (6,427.08 km) |
| Schofield Barracks to Orange City (Florida) | 4,745.30 mi (7,636.83 km) |
