| Leigh-on-Sea to Popovo | 1,313.40 mi (2,113.71 km) |
| Leigh-on-Sea to Provadia | 1,369.73 mi (2,204.37 km) |
| Leigh-on-Sea to Radnevo | 1,343.48 mi (2,162.13 km) |
| Leigh-on-Sea to Radomir | 1,212.61 mi (1,951.50 km) |
| Leigh-on-Sea to Rakitovo | 1,282.30 mi (2,063.67 km) |
| Leigh-on-Sea to Rakovski | 1,304.67 mi (2,099.66 km) |
| Leigh-on-Sea to Razgrad | 1,318.05 mi (2,121.19 km) |
| Leigh-on-Sea to Razlog | 1,262.18 mi (2,031.29 km) |
| Leigh-on-Sea to Ruse | 1,283.54 mi (2,065.66 km) |
| Leigh-on-Sea to Samokov | 1,245.92 mi (2,005.11 km) |
| Leigh-on-Sea to Sandanski | 1,268.95 mi (2,042.19 km) |
| Leigh-on-Sea to Sevlievo | 1,280.18 mi (2,060.25 km) |
| Leigh-on-Sea to Shumen | 1,345.04 mi (2,164.64 km) |
| Leigh-on-Sea to Silistra | 1,327.15 mi (2,135.85 km) |
| Leigh-on-Sea to Sliven | 1,344.10 mi (2,163.11 km) |
