| Cecina to Olympia Heights (Florida) | 5,062.00 mi (8,146.50 km) |
| Cecina to Omaha (Nebraska) | 5,026.80 mi (8,089.86 km) |
| Cecina to On Top of the World Designated Place (Florida) | 5,001.35 mi (8,048.90 km) |
| Cecina to Onalaska (Wisconsin) | 4,722.07 mi (7,599.43 km) |
| Cecina to Oneida (New York) | 4,127.47 mi (6,642.52 km) |
| Cecina to Oneonta (New York) | 4,125.37 mi (6,639.14 km) |
| Cecina to Ontario (California) | 6,171.65 mi (9,932.32 km) |
| Cecina to Ontario (Oregon) | 5,588.83 mi (8,994.35 km) |
| Cecina to Opa-locka (Florida) | 5,050.15 mi (8,127.43 km) |
| Cecina to Opelika (Alabama) | 4,981.72 mi (8,017.30 km) |
| Cecina to Opelousas (Louisiana) | 5,373.75 mi (8,648.21 km) |
| Cecina to Orange (California) | 6,192.06 mi (9,965.16 km) |
| Cecina to Orange (Texas) | 5,465.32 mi (8,795.58 km) |
| Cecina to Orange City (Florida) | 4,962.89 mi (7,987.00 km) |
| Cecina to Orangeburg (South Carolina) | 4,743.87 mi (7,634.51 km) |
