| Worth to Olympia Heights (Florida) | 4,440.35 mi (7,146.06 km) |
| Worth to Omaha (Nebraska) | 4,304.71 mi (6,927.76 km) |
| Worth to On Top of the World Designated Place (Florida) | 4,354.44 mi (7,007.79 km) |
| Worth to Onalaska (Wisconsin) | 4,001.22 mi (6,439.34 km) |
| Worth to Oneida (New York) | 3,436.39 mi (5,530.33 km) |
| Worth to Oneonta (New York) | 3,438.41 mi (5,533.58 km) |
| Worth to Ontario (California) | 5,438.12 mi (8,751.81 km) |
| Worth to Ontario (Oregon) | 4,856.66 mi (7,816.04 km) |
| Worth to Opa-locka (Florida) | 4,427.96 mi (7,126.11 km) |
| Worth to Opelika (Alabama) | 4,308.18 mi (6,933.34 km) |
| Worth to Opelousas (Louisiana) | 4,687.69 mi (7,544.12 km) |
| Worth to Orange (California) | 5,458.53 mi (8,784.65 km) |
| Worth to Orange (Texas) | 4,775.74 mi (7,685.81 km) |
| Worth to Orange City (Florida) | 4,320.75 mi (6,953.58 km) |
| Worth to Orangeburg (South Carolina) | 4,081.46 mi (6,568.48 km) |
