| DeKalb to Odessa (Texas) | 1,020.66 mi (1,642.59 km) |
| DeKalb to Ogden (Utah) | 1,197.42 mi (1,927.07 km) |
| DeKalb to Oildale (California) | 1,684.25 mi (2,710.55 km) |
| DeKalb to Ojus (Florida) | 1,206.95 mi (1,942.40 km) |
| DeKalb to Okemos (Michigan) | 227.79 mi (366.59 km) |
| DeKalb to Oklahoma City (Oklahoma) | 649.62 mi (1,045.46 km) |
| DeKalb to Okmulgee (Oklahoma) | 585.59 mi (942.41 km) |
| DeKalb to Olathe (Kansas) | 382.47 mi (615.53 km) |
| DeKalb to Old Jamestown (Missouri) | 228.42 mi (367.60 km) |
| DeKalb to Oldsmar (Florida) | 1,018.19 mi (1,638.63 km) |
| DeKalb to Olean (New York) | 529.41 mi (852.01 km) |
| DeKalb to Olive Branch (Mississippi) | 485.25 mi (780.94 km) |
| DeKalb to Olivehurst (California) | 1,724.20 mi (2,774.84 km) |
| DeKalb to Olney (Maryland) | 641.99 mi (1,033.19 km) |
| DeKalb to Olympia (Washington) | 1,705.55 mi (2,744.83 km) |
