| South El Monte to Odenton (Maryland) | 2,301.22 mi (3,703.45 km) |
| South El Monte to Odessa (Texas) | 921.63 mi (1,483.22 km) |
| South El Monte to Ogden (Utah) | 596.85 mi (960.55 km) |
| South El Monte to Oildale (California) | 110.46 mi (177.76 km) |
| South El Monte to Ojus (Florida) | 2,320.90 mi (3,735.12 km) |
| South El Monte to Okemos (Michigan) | 1,902.94 mi (3,062.48 km) |
| South El Monte to Oklahoma City (Oklahoma) | 1,167.65 mi (1,879.15 km) |
| South El Monte to Okmulgee (Oklahoma) | 1,252.11 mi (2,015.08 km) |
| South El Monte to Olathe (Kansas) | 1,329.17 mi (2,139.10 km) |
| South El Monte to Old Jamestown (Missouri) | 1,571.78 mi (2,529.53 km) |
| South El Monte to Oldsmar (Florida) | 2,123.90 mi (3,418.09 km) |
| South El Monte to Olean (New York) | 2,204.20 mi (3,547.31 km) |
| South El Monte to Olive Branch (Mississippi) | 1,601.65 mi (2,577.61 km) |
| South El Monte to Olivehurst (California) | 398.28 mi (640.97 km) |
| South El Monte to Olney (Maryland) | 2,280.61 mi (3,670.28 km) |
