| Kardzhali to Oakley (California) | 6,555.80 mi (10,550.54 km) |
| Kardzhali to Oakton (Virginia) | 5,054.96 mi (8,135.17 km) |
| Kardzhali to Oakville (Missouri) | 5,583.94 mi (8,986.48 km) |
| Kardzhali to Oatfield (Oregon) | 6,104.96 mi (9,824.99 km) |
| Kardzhali to Ocala (Florida) | 5,711.79 mi (9,192.23 km) |
| Kardzhali to Ocean Acres (New Jersey) | 4,892.88 mi (7,874.32 km) |
| Kardzhali to Ocean City (New Jersey) | 4,926.82 mi (7,928.94 km) |
| Kardzhali to Ocean Pines (Maryland) | 4,988.21 mi (8,027.75 km) |
| Kardzhali to Ocean Pointe (Hawaii) | 8,080.94 mi (13,005.02 km) |
| Kardzhali to Ocean Springs (Mississippi) | 5,930.35 mi (9,543.98 km) |
| Kardzhali to Oceanside (California) | 6,746.17 mi (10,856.90 km) |
| Kardzhali to Oceanside (New York) | 4,828.01 mi (7,769.94 km) |
| Kardzhali to Ocoee (Florida) | 5,713.59 mi (9,195.14 km) |
| Kardzhali to Oconomowoc (Wisconsin) | 5,285.91 mi (8,506.85 km) |
| Kardzhali to Odenton (Maryland) | 5,022.12 mi (8,082.31 km) |
