| Cheat Lake to Olympia Heights (Florida) | 963.77 mi (1,551.04 km) |
| Cheat Lake to Omaha (Nebraska) | 857.23 mi (1,379.57 km) |
| Cheat Lake to On Top of the World Designated Place (Florida) | 742.66 mi (1,195.19 km) |
| Cheat Lake to Onalaska (Wisconsin) | 652.78 mi (1,050.54 km) |
| Cheat Lake to Oneida (New York) | 320.54 mi (515.86 km) |
| Cheat Lake to Oneonta (New York) | 315.15 mi (507.19 km) |
| Cheat Lake to Ontario (California) | 2,107.05 mi (3,390.97 km) |
| Cheat Lake to Ontario (Oregon) | 1,917.58 mi (3,086.04 km) |
| Cheat Lake to Opa-locka (Florida) | 951.51 mi (1,531.30 km) |
| Cheat Lake to Opelika (Alabama) | 573.41 mi (922.82 km) |
| Cheat Lake to Opelousas (Louisiana) | 934.60 mi (1,504.09 km) |
| Cheat Lake to Orange (California) | 2,124.59 mi (3,419.20 km) |
| Cheat Lake to Orange (Texas) | 1,025.29 mi (1,650.05 km) |
| Cheat Lake to Orange City (Florida) | 745.98 mi (1,200.54 km) |
| Cheat Lake to Orangeburg (South Carolina) | 430.26 mi (692.43 km) |
