| Rosrath to Olympia Heights (Florida) | 4,754.59 mi (7,651.77 km) |
| Rosrath to Omaha (Nebraska) | 4,575.19 mi (7,363.05 km) |
| Rosrath to On Top of the World Designated Place (Florida) | 4,664.22 mi (7,506.33 km) |
| Rosrath to Onalaska (Wisconsin) | 4,273.91 mi (6,878.20 km) |
| Rosrath to Oneida (New York) | 3,732.93 mi (6,007.58 km) |
| Rosrath to Oneonta (New York) | 3,736.88 mi (6,013.93 km) |
| Rosrath to Ontario (California) | 5,677.47 mi (9,137.00 km) |
| Rosrath to Ontario (Oregon) | 5,075.46 mi (8,168.17 km) |
| Rosrath to Opa-locka (Florida) | 4,742.12 mi (7,631.71 km) |
| Rosrath to Opelika (Alabama) | 4,610.48 mi (7,419.85 km) |
| Rosrath to Opelousas (Louisiana) | 4,984.35 mi (8,021.54 km) |
| Rosrath to Orange (California) | 5,697.79 mi (9,169.71 km) |
| Rosrath to Orange (Texas) | 5,070.59 mi (8,160.32 km) |
| Rosrath to Orange City (Florida) | 4,631.60 mi (7,453.83 km) |
| Rosrath to Orangeburg (South Carolina) | 4,387.68 mi (7,061.29 km) |
