| Sanford to Olympia (Washington) | 2,554.57 mi (4,111.19 km) |
| Sanford to Olympia Heights (Florida) | 219.45 mi (353.18 km) |
| Sanford to Omaha (Nebraska) | 1,197.37 mi (1,926.98 km) |
| Sanford to On Top of the World Designated Place (Florida) | 64.92 mi (104.48 km) |
| Sanford to Onalaska (Wisconsin) | 1,178.56 mi (1,896.71 km) |
| Sanford to Oneida (New York) | 1,035.29 mi (1,666.14 km) |
| Sanford to Oneonta (New York) | 1,005.82 mi (1,618.71 km) |
| Sanford to Ontario (California) | 2,161.29 mi (3,478.26 km) |
| Sanford to Ontario (Oregon) | 2,223.05 mi (3,577.65 km) |
| Sanford to Opa-locka (Florida) | 209.23 mi (336.72 km) |
| Sanford to Opelika (Alabama) | 361.74 mi (582.17 km) |
| Sanford to Opelousas (Louisiana) | 659.53 mi (1,061.40 km) |
| Sanford to Orange (California) | 2,173.83 mi (3,498.44 km) |
| Sanford to Orange (Texas) | 756.36 mi (1,217.25 km) |
| Sanford to Orange City (Florida) | 10.09 mi (16.25 km) |
