| Sacavem to Olympia Heights (Florida) | 4,155.52 mi (6,687.66 km) |
| Sacavem to Omaha (Nebraska) | 4,395.37 mi (7,073.67 km) |
| Sacavem to On Top of the World Designated Place (Florida) | 4,137.39 mi (6,658.48 km) |
| Sacavem to Onalaska (Wisconsin) | 4,092.71 mi (6,586.58 km) |
| Sacavem to Oneida (New York) | 3,394.29 mi (5,462.58 km) |
| Sacavem to Oneonta (New York) | 3,379.79 mi (5,439.24 km) |
| Sacavem to Ontario (California) | 5,639.30 mi (9,075.57 km) |
| Sacavem to Ontario (Oregon) | 5,162.99 mi (8,309.03 km) |
| Sacavem to Opa-locka (Florida) | 4,144.72 mi (6,670.28 km) |
| Sacavem to Opelika (Alabama) | 4,173.71 mi (6,716.94 km) |
| Sacavem to Opelousas (Louisiana) | 4,587.92 mi (7,383.54 km) |
| Sacavem to Orange (California) | 5,659.34 mi (9,107.83 km) |
| Sacavem to Orange (Texas) | 4,687.19 mi (7,543.30 km) |
| Sacavem to Orange City (Florida) | 4,091.28 mi (6,584.28 km) |
| Sacavem to Orangeburg (South Carolina) | 3,916.93 mi (6,303.69 km) |
