| San Jacinto to Olympia (Washington) | 965.66 mi (1,554.08 km) |
| San Jacinto to Olympia Heights (Florida) | 2,255.35 mi (3,629.63 km) |
| San Jacinto to Omaha (Nebraska) | 1,253.69 mi (2,017.62 km) |
| San Jacinto to On Top of the World Designated Place (Florida) | 2,061.28 mi (3,317.30 km) |
| San Jacinto to Onalaska (Wisconsin) | 1,543.98 mi (2,484.80 km) |
| San Jacinto to Oneida (New York) | 2,301.41 mi (3,703.77 km) |
| San Jacinto to Oneonta (New York) | 2,330.57 mi (3,750.69 km) |
| San Jacinto to Ontario (California) | 39.02 mi (62.80 km) |
| San Jacinto to Ontario (Oregon) | 706.75 mi (1,137.40 km) |
| San Jacinto to Opa-locka (Florida) | 2,255.40 mi (3,629.72 km) |
| San Jacinto to Opelika (Alabama) | 1,821.71 mi (2,931.76 km) |
| San Jacinto to Opelousas (Louisiana) | 1,470.77 mi (2,366.97 km) |
| San Jacinto to Orange (California) | 47.67 mi (76.71 km) |
| San Jacinto to Orange (Texas) | 1,382.16 mi (2,224.38 km) |
| San Jacinto to Orange City (Florida) | 2,122.28 mi (3,415.49 km) |
