| Rosamond to Olympia (Washington) | 875.58 mi (1,409.11 km) |
| Rosamond to Olympia Heights (Florida) | 2,331.12 mi (3,751.58 km) |
| Rosamond to Omaha (Nebraska) | 1,279.69 mi (2,059.47 km) |
| Rosamond to On Top of the World Designated Place (Florida) | 2,131.16 mi (3,429.77 km) |
| Rosamond to Onalaska (Wisconsin) | 1,562.24 mi (2,514.19 km) |
| Rosamond to Oneida (New York) | 2,328.71 mi (3,747.70 km) |
| Rosamond to Oneonta (New York) | 2,359.78 mi (3,797.69 km) |
| Rosamond to Ontario (California) | 66.82 mi (107.54 km) |
| Rosamond to Ontario (Oregon) | 636.33 mi (1,024.07 km) |
| Rosamond to Opa-locka (Florida) | 2,330.76 mi (3,751.00 km) |
| Rosamond to Opelika (Alabama) | 1,883.99 mi (3,031.99 km) |
| Rosamond to Opelousas (Louisiana) | 1,544.26 mi (2,485.25 km) |
| Rosamond to Orange (California) | 76.74 mi (123.50 km) |
| Rosamond to Orange (Texas) | 1,458.37 mi (2,347.02 km) |
| Rosamond to Orange City (Florida) | 2,191.85 mi (3,527.44 km) |
