| Almagro to Olympia Heights (Florida) | 4,438.21 mi (7,142.61 km) |
| Almagro to Omaha (Nebraska) | 4,631.78 mi (7,454.13 km) |
| Almagro to On Top of the World Designated Place (Florida) | 4,414.36 mi (7,104.23 km) |
| Almagro to Onalaska (Wisconsin) | 4,327.30 mi (6,964.11 km) |
| Almagro to Oneida (New York) | 3,646.44 mi (5,868.38 km) |
| Almagro to Oneonta (New York) | 3,634.29 mi (5,848.82 km) |
| Almagro to Ontario (California) | 5,861.00 mi (9,432.37 km) |
| Almagro to Ontario (Oregon) | 5,359.52 mi (8,625.32 km) |
| Almagro to Opa-locka (Florida) | 4,427.27 mi (7,125.00 km) |
| Almagro to Opelika (Alabama) | 4,442.08 mi (7,148.84 km) |
| Almagro to Opelousas (Louisiana) | 4,853.67 mi (7,811.23 km) |
| Almagro to Orange (California) | 5,881.21 mi (9,464.89 km) |
| Almagro to Orange (Texas) | 4,951.91 mi (7,969.33 km) |
| Almagro to Orange City (Florida) | 4,369.27 mi (7,031.66 km) |
| Almagro to Orangeburg (South Carolina) | 4,187.75 mi (6,739.53 km) |
