| DeForest to Odessa (Texas) | 1,056.76 mi (1,700.69 km) |
| DeForest to Ogden (Utah) | 1,162.16 mi (1,870.32 km) |
| DeForest to Oildale (California) | 1,665.31 mi (2,680.06 km) |
| DeForest to Ojus (Florida) | 1,300.77 mi (2,093.38 km) |
| DeForest to Okemos (Michigan) | 251.81 mi (405.25 km) |
| DeForest to Oklahoma City (Oklahoma) | 690.81 mi (1,111.75 km) |
| DeForest to Okmulgee (Oklahoma) | 634.69 mi (1,021.43 km) |
| DeForest to Olathe (Kansas) | 414.09 mi (666.41 km) |
| DeForest to Old Jamestown (Missouri) | 307.31 mi (494.56 km) |
| DeForest to Oldsmar (Florida) | 1,112.77 mi (1,790.82 km) |
| DeForest to Olean (New York) | 559.66 mi (900.69 km) |
| DeForest to Olive Branch (Mississippi) | 571.97 mi (920.50 km) |
| DeForest to Olivehurst (California) | 1,689.42 mi (2,718.86 km) |
| DeForest to Olney (Maryland) | 696.78 mi (1,121.36 km) |
| DeForest to Olympia (Washington) | 1,643.48 mi (2,644.92 km) |
