| Southend to Popovo | 1,311.20 mi (2,110.17 km) |
| Southend to Provadia | 1,367.51 mi (2,200.80 km) |
| Southend to Radnevo | 1,341.34 mi (2,158.69 km) |
| Southend to Radomir | 1,210.55 mi (1,948.20 km) |
| Southend to Rakitovo | 1,280.24 mi (2,060.35 km) |
| Southend to Rakovski | 1,302.56 mi (2,096.27 km) |
| Southend to Razgrad | 1,315.83 mi (2,117.62 km) |
| Southend to Razlog | 1,260.15 mi (2,028.01 km) |
| Southend to Ruse | 1,281.32 mi (2,062.09 km) |
| Southend to Samokov | 1,243.85 mi (2,001.79 km) |
| Southend to Sandanski | 1,266.95 mi (2,038.96 km) |
| Southend to Sevlievo | 1,278.03 mi (2,056.78 km) |
| Southend to Shumen | 1,342.83 mi (2,161.07 km) |
| Southend to Silistra | 1,324.89 mi (2,132.21 km) |
| Southend to Sliven | 1,341.93 mi (2,159.62 km) |
