| Almendralejo to Olympia Heights (Florida) | 4,299.15 mi (6,918.82 km) |
| Almendralejo to Omaha (Nebraska) | 4,520.22 mi (7,274.60 km) |
| Almendralejo to On Top of the World Designated Place (Florida) | 4,279.06 mi (6,886.48 km) |
| Almendralejo to Onalaska (Wisconsin) | 4,216.67 mi (6,786.07 km) |
| Almendralejo to Oneida (New York) | 3,525.76 mi (5,674.16 km) |
| Almendralejo to Oneonta (New York) | 3,512.27 mi (5,652.45 km) |
| Almendralejo to Ontario (California) | 5,757.95 mi (9,266.53 km) |
| Almendralejo to Ontario (Oregon) | 5,270.07 mi (8,481.36 km) |
| Almendralejo to Opa-locka (Florida) | 4,288.31 mi (6,901.36 km) |
| Almendralejo to Opelika (Alabama) | 4,312.09 mi (6,939.64 km) |
| Almendralejo to Opelousas (Louisiana) | 4,725.30 mi (7,604.64 km) |
| Almendralejo to Orange (California) | 5,778.08 mi (9,298.92 km) |
| Almendralejo to Orange (Texas) | 4,824.17 mi (7,763.75 km) |
| Almendralejo to Orange City (Florida) | 4,233.32 mi (6,812.87 km) |
| Almendralejo to Orangeburg (South Carolina) | 4,056.25 mi (6,527.90 km) |
