| South El Monte to Oskaloosa (Iowa) | 1,470.44 mi (2,366.44 km) |
| South El Monte to Oswego (Illinois) | 1,694.45 mi (2,726.95 km) |
| South El Monte to Oswego (New York) | 2,304.96 mi (3,709.48 km) |
| South El Monte to Otsego (Minnesota) | 1,504.01 mi (2,420.47 km) |
| South El Monte to Ottawa (Illinois) | 1,666.17 mi (2,681.45 km) |
| South El Monte to Ottawa (Kansas) | 1,303.02 mi (2,097.00 km) |
| South El Monte to Ottumwa (Iowa) | 1,478.11 mi (2,378.78 km) |
| South El Monte to Overland (Missouri) | 1,566.67 mi (2,521.31 km) |
| South El Monte to Overland Park (Kansas) | 1,336.30 mi (2,150.57 km) |
| South El Monte to Overlea (Maryland) | 2,309.09 mi (3,716.12 km) |
| South El Monte to Oviedo (Florida) | 2,194.62 mi (3,531.90 km) |
| South El Monte to Owasso (Oklahoma) | 1,261.54 mi (2,030.26 km) |
| South El Monte to Owatonna (Minnesota) | 1,492.98 mi (2,402.71 km) |
| South El Monte to Owensboro (Kentucky) | 1,741.90 mi (2,803.32 km) |
| South El Monte to Owings Mills (Maryland) | 2,294.27 mi (3,692.28 km) |
