| Carrick on Shannon to Olympia Heights (Florida) | 4,087.75 mi (6,578.60 km) |
| Carrick on Shannon to Omaha (Nebraska) | 3,917.97 mi (6,305.36 km) |
| Carrick on Shannon to On Top of the World Designated Place (Florida) | 3,991.43 mi (6,423.58 km) |
| Carrick on Shannon to Onalaska (Wisconsin) | 3,614.59 mi (5,817.13 km) |
| Carrick on Shannon to Oneida (New York) | 3,057.92 mi (4,921.25 km) |
| Carrick on Shannon to Oneonta (New York) | 3,061.45 mi (4,926.93 km) |
| Carrick on Shannon to Ontario (California) | 5,055.13 mi (8,135.44 km) |
| Carrick on Shannon to Ontario (Oregon) | 4,481.07 mi (7,211.59 km) |
| Carrick on Shannon to Opa-locka (Florida) | 4,075.16 mi (6,558.34 km) |
| Carrick on Shannon to Opelika (Alabama) | 3,934.82 mi (6,332.48 km) |
| Carrick on Shannon to Opelousas (Louisiana) | 4,309.46 mi (6,935.40 km) |
| Carrick on Shannon to Orange (California) | 5,075.54 mi (8,168.30 km) |
| Carrick on Shannon to Orange (Texas) | 4,396.29 mi (7,075.14 km) |
| Carrick on Shannon to Orange City (Florida) | 3,959.82 mi (6,372.71 km) |
| Carrick on Shannon to Orangeburg (South Carolina) | 3,712.83 mi (5,975.23 km) |
