| Imperial Beach to Odessa (Texas) | 864.12 mi (1,390.66 km) |
| Imperial Beach to Ogden (Utah) | 662.15 mi (1,065.62 km) |
| Imperial Beach to Oildale (California) | 225.93 mi (363.60 km) |
| Imperial Beach to Ojus (Florida) | 2,262.32 mi (3,640.85 km) |
| Imperial Beach to Okemos (Michigan) | 1,906.88 mi (3,068.82 km) |
| Imperial Beach to Oklahoma City (Oklahoma) | 1,138.45 mi (1,832.16 km) |
| Imperial Beach to Okmulgee (Oklahoma) | 1,223.67 mi (1,969.31 km) |
| Imperial Beach to Olathe (Kansas) | 1,320.52 mi (2,125.17 km) |
| Imperial Beach to Old Jamestown (Missouri) | 1,560.20 mi (2,510.89 km) |
| Imperial Beach to Oldsmar (Florida) | 2,069.30 mi (3,330.22 km) |
| Imperial Beach to Olean (New York) | 2,203.78 mi (3,546.65 km) |
| Imperial Beach to Olive Branch (Mississippi) | 1,570.24 mi (2,527.05 km) |
| Imperial Beach to Olivehurst (California) | 513.79 mi (826.86 km) |
| Imperial Beach to Olney (Maryland) | 2,269.16 mi (3,651.86 km) |
| Imperial Beach to Olympia (Washington) | 1,045.16 mi (1,682.03 km) |
