| Hartlepool to Popovo | 1,455.38 mi (2,342.21 km) |
| Hartlepool to Provadia | 1,507.96 mi (2,426.83 km) |
| Hartlepool to Radnevo | 1,494.01 mi (2,404.38 km) |
| Hartlepool to Radomir | 1,374.37 mi (2,211.83 km) |
| Hartlepool to Rakitovo | 1,442.78 mi (2,321.92 km) |
| Hartlepool to Rakovski | 1,459.38 mi (2,348.64 km) |
| Hartlepool to Razgrad | 1,457.50 mi (2,345.62 km) |
| Hartlepool to Razlog | 1,425.95 mi (2,294.85 km) |
| Hartlepool to Ruse | 1,423.17 mi (2,290.38 km) |
| Hartlepool to Samokov | 1,406.41 mi (2,263.40 km) |
| Hartlepool to Sandanski | 1,435.45 mi (2,310.14 km) |
| Hartlepool to Sevlievo | 1,429.23 mi (2,300.13 km) |
| Hartlepool to Shumen | 1,484.61 mi (2,389.24 km) |
| Hartlepool to Silistra | 1,459.13 mi (2,348.25 km) |
| Hartlepool to Sliven | 1,490.37 mi (2,398.52 km) |
