| Cuellar to Olympia Heights (Florida) | 4,369.56 mi (7,032.13 km) |
| Cuellar to Omaha (Nebraska) | 4,506.69 mi (7,252.82 km) |
| Cuellar to On Top of the World Designated Place (Florida) | 4,333.94 mi (6,974.81 km) |
| Cuellar to Onalaska (Wisconsin) | 4,201.33 mi (6,761.40 km) |
| Cuellar to Oneida (New York) | 3,536.10 mi (5,690.80 km) |
| Cuellar to Oneonta (New York) | 3,526.23 mi (5,674.92 km) |
| Cuellar to Ontario (California) | 5,724.67 mi (9,212.97 km) |
| Cuellar to Ontario (Oregon) | 5,210.74 mi (8,385.87 km) |
| Cuellar to Opa-locka (Florida) | 4,358.29 mi (7,013.99 km) |
| Cuellar to Opelika (Alabama) | 4,348.41 mi (6,998.10 km) |
| Cuellar to Opelousas (Louisiana) | 4,756.01 mi (7,654.05 km) |
| Cuellar to Orange (California) | 5,744.96 mi (9,245.62 km) |
| Cuellar to Orange (Texas) | 4,852.83 mi (7,809.88 km) |
| Cuellar to Orange City (Florida) | 4,290.76 mi (6,905.31 km) |
| Cuellar to Orangeburg (South Carolina) | 4,097.87 mi (6,594.89 km) |
