| Bithlo to Popovo | 5,670.86 mi (9,126.36 km) |
| Bithlo to Provadia | 5,727.94 mi (9,218.23 km) |
| Bithlo to Radnevo | 5,696.58 mi (9,167.76 km) |
| Bithlo to Radomir | 5,557.45 mi (8,943.86 km) |
| Bithlo to Rakitovo | 5,627.26 mi (9,056.20 km) |
| Bithlo to Rakovski | 5,654.97 mi (9,100.79 km) |
| Bithlo to Razgrad | 5,676.12 mi (9,134.84 km) |
| Bithlo to Razlog | 5,603.59 mi (9,018.10 km) |
| Bithlo to Ruse | 5,641.66 mi (9,079.37 km) |
| Bithlo to Samokov | 5,591.52 mi (8,998.68 km) |
| Bithlo to Sandanski | 5,606.49 mi (9,022.77 km) |
| Bithlo to Sevlievo | 5,634.75 mi (9,068.25 km) |
| Bithlo to Shumen | 5,703.04 mi (9,178.15 km) |
| Bithlo to Silistra | 5,685.69 mi (9,150.23 km) |
| Bithlo to Sliven | 5,699.71 mi (9,172.79 km) |
