| Sliven to Oak Harbor (Washington) | 5,873.16 mi (9,451.94 km) |
| Sliven to Oak Hills (Oregon) | 6,053.11 mi (9,741.54 km) |
| Sliven to Oak Lawn (Illinois) | 5,311.19 mi (8,547.53 km) |
| Sliven to Oak Park (California) | 6,685.92 mi (10,759.95 km) |
| Sliven to Oak Park (Illinois) | 5,303.83 mi (8,535.68 km) |
| Sliven to Oak Park (Michigan) | 5,109.15 mi (8,222.39 km) |
| Sliven to Oak Ridge (Florida) | 5,717.47 mi (9,201.38 km) |
| Sliven to Oak Ridge (New Jersey) | 4,841.40 mi (7,791.48 km) |
| Sliven to Oak Ridge (Tennessee) | 5,467.54 mi (8,799.16 km) |
| Sliven to Oakdale (California) | 6,508.55 mi (10,474.50 km) |
| Sliven to Oakdale (Minnesota) | 5,320.56 mi (8,562.61 km) |
| Sliven to Oakland (California) | 6,536.07 mi (10,518.78 km) |
| Sliven to Oakland (New Jersey) | 4,831.18 mi (7,775.03 km) |
| Sliven to Oakland Park (Florida) | 5,774.61 mi (9,293.33 km) |
| Sliven to Oakleaf Plantation (Florida) | 5,652.15 mi (9,096.26 km) |
