| Cervera to Olympia Heights (Florida) | 4,646.40 mi (7,477.66 km) |
| Cervera to Omaha (Nebraska) | 4,731.41 mi (7,614.48 km) |
| Cervera to On Top of the World Designated Place (Florida) | 4,603.97 mi (7,409.37 km) |
| Cervera to Onalaska (Wisconsin) | 4,425.45 mi (7,122.07 km) |
| Cervera to Oneida (New York) | 3,781.62 mi (6,085.93 km) |
| Cervera to Oneonta (New York) | 3,774.23 mi (6,074.04 km) |
| Cervera to Ontario (California) | 5,928.49 mi (9,540.99 km) |
| Cervera to Ontario (Oregon) | 5,389.73 mi (8,673.93 km) |
| Cervera to Opa-locka (Florida) | 4,634.97 mi (7,459.26 km) |
| Cervera to Opelika (Alabama) | 4,608.56 mi (7,416.76 km) |
| Cervera to Opelousas (Louisiana) | 5,012.10 mi (8,066.20 km) |
| Cervera to Orange (California) | 5,948.88 mi (9,573.79 km) |
| Cervera to Orange (Texas) | 5,107.49 mi (8,219.72 km) |
| Cervera to Orange City (Florida) | 4,562.06 mi (7,341.92 km) |
| Cervera to Orangeburg (South Carolina) | 4,361.43 mi (7,019.04 km) |
