| Shoreline to Odenton (Maryland) | 2,332.16 mi (3,753.24 km) |
| Shoreline to Odessa (Texas) | 1,517.41 mi (2,442.03 km) |
| Shoreline to Ogden (Utah) | 680.79 mi (1,095.62 km) |
| Shoreline to Oildale (California) | 868.52 mi (1,397.75 km) |
| Shoreline to Ojus (Florida) | 2,727.24 mi (4,389.07 km) |
| Shoreline to Okemos (Michigan) | 1,858.89 mi (2,991.60 km) |
| Shoreline to Oklahoma City (Oklahoma) | 1,527.52 mi (2,458.31 km) |
| Shoreline to Okmulgee (Oklahoma) | 1,585.14 mi (2,551.04 km) |
| Shoreline to Olathe (Kansas) | 1,502.80 mi (2,418.53 km) |
| Shoreline to Old Jamestown (Missouri) | 1,710.81 mi (2,753.28 km) |
| Shoreline to Oldsmar (Florida) | 2,515.63 mi (4,048.52 km) |
| Shoreline to Olean (New York) | 2,153.89 mi (3,466.35 km) |
| Shoreline to Olive Branch (Mississippi) | 1,883.77 mi (3,031.64 km) |
| Shoreline to Olivehurst (California) | 600.80 mi (966.90 km) |
| Shoreline to Olney (Maryland) | 2,311.84 mi (3,720.55 km) |
