| North Augusta to Olympia Heights (Florida) | 547.39 mi (880.95 km) |
| North Augusta to Omaha (Nebraska) | 938.83 mi (1,510.90 km) |
| North Augusta to On Top of the World Designated Place (Florida) | 305.72 mi (492.00 km) |
| North Augusta to Onalaska (Wisconsin) | 871.64 mi (1,402.77 km) |
| North Augusta to Oneida (New York) | 742.62 mi (1,195.14 km) |
| North Augusta to Oneonta (New York) | 721.69 mi (1,161.44 km) |
| North Augusta to Ontario (California) | 2,037.25 mi (3,278.64 km) |
| North Augusta to Ontario (Oregon) | 2,003.00 mi (3,223.52 km) |
| North Augusta to Opa-locka (Florida) | 536.37 mi (863.20 km) |
| North Augusta to Opelika (Alabama) | 206.81 mi (332.83 km) |
| North Augusta to Opelousas (Louisiana) | 627.97 mi (1,010.62 km) |
| North Augusta to Orange (California) | 2,052.10 mi (3,302.53 km) |
| North Augusta to Orange (Texas) | 731.28 mi (1,176.88 km) |
| North Augusta to Orange City (Florida) | 319.34 mi (513.93 km) |
| North Augusta to Orangeburg (South Carolina) | 62.69 mi (100.89 km) |
