| Demir Hisar to Odessa (Texas) | 6,237.99 mi (10,039.07 km) |
| Demir Hisar to Ogden (Utah) | 6,031.29 mi (9,706.42 km) |
| Demir Hisar to Oildale (California) | 6,571.63 mi (10,576.02 km) |
| Demir Hisar to Ojus (Florida) | 5,601.66 mi (9,014.99 km) |
| Demir Hisar to Okemos (Michigan) | 5,019.93 mi (8,078.80 km) |
| Demir Hisar to Oklahoma City (Oklahoma) | 5,869.52 mi (9,446.08 km) |
| Demir Hisar to Okmulgee (Oklahoma) | 5,805.48 mi (9,343.01 km) |
| Demir Hisar to Olathe (Kansas) | 5,595.21 mi (9,004.62 km) |
| Demir Hisar to Old Jamestown (Missouri) | 5,426.71 mi (8,733.44 km) |
| Demir Hisar to Oldsmar (Florida) | 5,619.47 mi (9,043.67 km) |
| Demir Hisar to Olean (New York) | 4,810.49 mi (7,741.74 km) |
| Demir Hisar to Olive Branch (Mississippi) | 5,597.56 mi (9,008.41 km) |
| Demir Hisar to Olivehurst (California) | 6,414.16 mi (10,322.60 km) |
| Demir Hisar to Olney (Maryland) | 4,878.44 mi (7,851.08 km) |
| Demir Hisar to Olympia (Washington) | 5,952.75 mi (9,580.02 km) |
