| Progress to Odenton (Maryland) | 84.92 mi (136.67 km) |
| Progress to Odessa (Texas) | 1,531.22 mi (2,464.26 km) |
| Progress to Ogden (Utah) | 1,827.05 mi (2,940.36 km) |
| Progress to Oildale (California) | 2,303.97 mi (3,707.89 km) |
| Progress to Ojus (Florida) | 1,008.62 mi (1,623.22 km) |
| Progress to Okemos (Michigan) | 425.81 mi (685.27 km) |
| Progress to Oklahoma City (Oklahoma) | 1,172.57 mi (1,887.06 km) |
| Progress to Okmulgee (Oklahoma) | 1,090.57 mi (1,755.11 km) |
| Progress to Olathe (Kansas) | 960.67 mi (1,546.06 km) |
| Progress to Old Jamestown (Missouri) | 722.42 mi (1,162.62 km) |
| Progress to Oldsmar (Florida) | 908.41 mi (1,461.94 km) |
| Progress to Olean (New York) | 148.94 mi (239.70 km) |
| Progress to Olive Branch (Mississippi) | 800.26 mi (1,287.90 km) |
| Progress to Olivehurst (California) | 2,353.62 mi (3,787.78 km) |
| Progress to Olney (Maryland) | 79.97 mi (128.70 km) |
