| Emsworth to Olympia Heights (Florida) | 4,409.45 mi (7,096.33 km) |
| Emsworth to Omaha (Nebraska) | 4,285.32 mi (6,896.55 km) |
| Emsworth to On Top of the World Designated Place (Florida) | 4,325.27 mi (6,960.85 km) |
| Emsworth to Onalaska (Wisconsin) | 3,981.46 mi (6,407.53 km) |
| Emsworth to Oneida (New York) | 3,411.28 mi (5,489.93 km) |
| Emsworth to Oneonta (New York) | 3,412.79 mi (5,492.35 km) |
| Emsworth to Ontario (California) | 5,424.23 mi (8,729.45 km) |
| Emsworth to Ontario (Oregon) | 4,846.42 mi (7,799.56 km) |
| Emsworth to Opa-locka (Florida) | 4,397.09 mi (7,076.42 km) |
| Emsworth to Opelika (Alabama) | 4,281.35 mi (6,890.16 km) |
| Emsworth to Opelousas (Louisiana) | 4,662.32 mi (7,503.28 km) |
| Emsworth to Orange (California) | 5,444.64 mi (8,762.31 km) |
| Emsworth to Orange (Texas) | 4,750.81 mi (7,645.69 km) |
| Emsworth to Orange City (Florida) | 4,291.22 mi (6,906.04 km) |
| Emsworth to Orangeburg (South Carolina) | 4,053.50 mi (6,523.48 km) |
