| River Ridge to Odenton (Maryland) | 992.50 mi (1,597.27 km) |
| River Ridge to Odessa (Texas) | 730.41 mi (1,175.48 km) |
| River Ridge to Ogden (Utah) | 1,442.52 mi (2,321.50 km) |
| River Ridge to Oildale (California) | 1,710.82 mi (2,753.30 km) |
| River Ridge to Ojus (Florida) | 672.99 mi (1,083.07 km) |
| River Ridge to Okemos (Michigan) | 937.50 mi (1,508.77 km) |
| River Ridge to Oklahoma City (Oklahoma) | 569.42 mi (916.39 km) |
| River Ridge to Okmulgee (Oklahoma) | 515.13 mi (829.02 km) |
| River Ridge to Olathe (Kansas) | 669.75 mi (1,077.86 km) |
| River Ridge to Old Jamestown (Missouri) | 613.57 mi (987.44 km) |
| River Ridge to Oldsmar (Florida) | 474.82 mi (764.14 km) |
| River Ridge to Olean (New York) | 1,063.38 mi (1,711.35 km) |
| River Ridge to Olive Branch (Mississippi) | 346.27 mi (557.26 km) |
| River Ridge to Olivehurst (California) | 1,880.76 mi (3,026.78 km) |
| River Ridge to Olney (Maryland) | 979.33 mi (1,576.08 km) |
