| Demir Hisar to Oakley (California) | 6,484.42 mi (10,435.66 km) |
| Demir Hisar to Oakton (Virginia) | 4,899.13 mi (7,884.40 km) |
| Demir Hisar to Oakville (Missouri) | 5,447.01 mi (8,766.12 km) |
| Demir Hisar to Oatfield (Oregon) | 6,047.25 mi (9,732.11 km) |
| Demir Hisar to Ocala (Florida) | 5,543.83 mi (8,921.94 km) |
| Demir Hisar to Ocean Acres (New Jersey) | 4,734.87 mi (7,620.04 km) |
| Demir Hisar to Ocean City (New Jersey) | 4,768.19 mi (7,673.66 km) |
| Demir Hisar to Ocean Pines (Maryland) | 4,828.40 mi (7,770.56 km) |
| Demir Hisar to Ocean Pointe (Hawaii) | 8,115.74 mi (13,061.03 km) |
| Demir Hisar to Ocean Springs (Mississippi) | 5,774.95 mi (9,293.89 km) |
| Demir Hisar to Oceanside (California) | 6,655.85 mi (10,711.55 km) |
| Demir Hisar to Oceanside (New York) | 4,671.16 mi (7,517.51 km) |
| Demir Hisar to Ocoee (Florida) | 5,543.68 mi (8,921.70 km) |
| Demir Hisar to Oconomowoc (Wisconsin) | 5,156.11 mi (8,297.96 km) |
| Demir Hisar to Odenton (Maryland) | 4,865.85 mi (7,830.82 km) |
