| Azusa to Olympia Heights (Florida) | 2,309.75 mi (3,717.19 km) |
| Azusa to Omaha (Nebraska) | 1,287.89 mi (2,072.66 km) |
| Azusa to On Top of the World Designated Place (Florida) | 2,113.84 mi (3,401.89 km) |
| Azusa to Onalaska (Wisconsin) | 1,574.65 mi (2,534.15 km) |
| Azusa to Oneida (New York) | 2,336.68 mi (3,760.52 km) |
| Azusa to Oneonta (New York) | 2,366.73 mi (3,808.88 km) |
| Azusa to Ontario (California) | 18.81 mi (30.27 km) |
| Azusa to Ontario (Oregon) | 684.98 mi (1,102.36 km) |
| Azusa to Opa-locka (Florida) | 2,309.69 mi (3,717.08 km) |
| Azusa to Opelika (Alabama) | 1,871.59 mi (3,012.03 km) |
| Azusa to Opelousas (Louisiana) | 1,524.36 mi (2,453.23 km) |
| Azusa to Orange (California) | 23.71 mi (38.15 km) |
| Azusa to Orange (Texas) | 1,436.56 mi (2,311.92 km) |
| Azusa to Orange City (Florida) | 2,174.75 mi (3,499.92 km) |
| Azusa to Orangeburg (South Carolina) | 2,115.23 mi (3,404.14 km) |
