| Davidson to Olympia Heights (Florida) | 674.97 mi (1,086.25 km) |
| Davidson to Omaha (Nebraska) | 914.68 mi (1,472.03 km) |
| Davidson to On Top of the World Designated Place (Florida) | 448.87 mi (722.38 km) |
| Davidson to Onalaska (Wisconsin) | 799.97 mi (1,287.42 km) |
| Davidson to Oneida (New York) | 592.54 mi (953.60 km) |
| Davidson to Oneonta (New York) | 572.09 mi (920.69 km) |
| Davidson to Ontario (California) | 2,078.11 mi (3,344.40 km) |
| Davidson to Ontario (Oregon) | 1,990.94 mi (3,204.10 km) |
| Davidson to Opa-locka (Florida) | 663.07 mi (1,067.11 km) |
| Davidson to Opelika (Alabama) | 325.38 mi (523.65 km) |
| Davidson to Opelousas (Louisiana) | 736.09 mi (1,184.62 km) |
| Davidson to Orange (California) | 2,093.94 mi (3,369.87 km) |
| Davidson to Orange (Texas) | 836.65 mi (1,346.46 km) |
| Davidson to Orange City (Florida) | 453.31 mi (729.54 km) |
| Davidson to Orangeburg (South Carolina) | 137.60 mi (221.45 km) |
