| Mendota to Olympia Heights (Florida) | 2,464.89 mi (3,966.86 km) |
| Mendota to Omaha (Nebraska) | 1,337.78 mi (2,152.95 km) |
| Mendota to On Top of the World Designated Place (Florida) | 2,255.63 mi (3,630.09 km) |
| Mendota to Onalaska (Wisconsin) | 1,604.01 mi (2,581.41 km) |
| Mendota to Oneida (New York) | 2,380.67 mi (3,831.32 km) |
| Mendota to Oneonta (New York) | 2,414.87 mi (3,886.36 km) |
| Mendota to Ontario (California) | 244.07 mi (392.79 km) |
| Mendota to Ontario (Oregon) | 533.15 mi (858.02 km) |
| Mendota to Opa-locka (Florida) | 2,463.84 mi (3,965.16 km) |
| Mendota to Opelika (Alabama) | 1,996.84 mi (3,213.60 km) |
| Mendota to Opelousas (Louisiana) | 1,676.81 mi (2,698.57 km) |
| Mendota to Orange (California) | 249.72 mi (401.89 km) |
| Mendota to Orange (Texas) | 1,595.62 mi (2,567.91 km) |
| Mendota to Orange City (Florida) | 2,315.62 mi (3,726.63 km) |
| Mendota to Orangeburg (South Carolina) | 2,228.40 mi (3,586.26 km) |
