| Ludwigsburg to Olympia Heights (Florida) | 4,879.04 mi (7,852.06 km) |
| Ludwigsburg to Omaha (Nebraska) | 4,730.67 mi (7,613.27 km) |
| Ludwigsburg to On Top of the World Designated Place (Florida) | 4,795.62 mi (7,717.80 km) |
| Ludwigsburg to Onalaska (Wisconsin) | 4,428.60 mi (7,127.14 km) |
| Ludwigsburg to Oneida (New York) | 3,876.27 mi (6,238.26 km) |
| Ludwigsburg to Oneonta (New York) | 3,878.89 mi (6,242.48 km) |
| Ludwigsburg to Ontario (California) | 5,839.82 mi (9,398.29 km) |
| Ludwigsburg to Ontario (Oregon) | 5,239.63 mi (8,432.37 km) |
| Ludwigsburg to Opa-locka (Florida) | 4,866.71 mi (7,832.22 km) |
| Ludwigsburg to Opelika (Alabama) | 4,749.60 mi (7,643.74 km) |
| Ludwigsburg to Opelousas (Louisiana) | 5,127.78 mi (8,252.36 km) |
| Ludwigsburg to Orange (California) | 5,860.16 mi (9,431.02 km) |
| Ludwigsburg to Orange (Texas) | 5,215.22 mi (8,393.08 km) |
| Ludwigsburg to Orange City (Florida) | 4,761.59 mi (7,663.03 km) |
| Ludwigsburg to Orangeburg (South Carolina) | 4,523.16 mi (7,279.32 km) |
