| Balchik to Oak Harbor (Washington) | 5,855.70 mi (9,423.83 km) |
| Balchik to Oak Hills (Oregon) | 6,037.25 mi (9,716.01 km) |
| Balchik to Oak Lawn (Illinois) | 5,338.28 mi (8,591.12 km) |
| Balchik to Oak Park (California) | 6,683.44 mi (10,755.95 km) |
| Balchik to Oak Park (Illinois) | 5,330.66 mi (8,578.87 km) |
| Balchik to Oak Park (Michigan) | 5,139.75 mi (8,271.62 km) |
| Balchik to Oak Ridge (Florida) | 5,766.94 mi (9,280.99 km) |
| Balchik to Oak Ridge (New Jersey) | 4,881.90 mi (7,856.65 km) |
| Balchik to Oak Ridge (Tennessee) | 5,505.20 mi (8,859.77 km) |
| Balchik to Oakdale (California) | 6,500.57 mi (10,461.65 km) |
| Balchik to Oakdale (Minnesota) | 5,338.40 mi (8,591.32 km) |
| Balchik to Oakland (California) | 6,526.22 mi (10,502.94 km) |
| Balchik to Oakland (New Jersey) | 4,871.90 mi (7,840.56 km) |
| Balchik to Oakland Park (Florida) | 5,827.97 mi (9,379.22 km) |
| Balchik to Oakleaf Plantation (Florida) | 5,699.23 mi (9,172.03 km) |
