| Cities | Distance |
|---|
| Sierre to Popovo | 936.42 mi (1,507.02 km) |
| Sierre to Provadia | 997.22 mi (1,604.87 km) |
| Sierre to Radnevo | 948.40 mi (1,526.31 km) |
| Sierre to Radomir | 802.07 mi (1,290.81 km) |
| Sierre to Rakitovo | 871.11 mi (1,401.92 km) |
| Sierre to Rakovski | 903.36 mi (1,453.82 km) |
| Sierre to Razgrad | 945.84 mi (1,522.18 km) |
| Sierre to Razlog | 845.68 mi (1,361.00 km) |
| Sierre to Ruse | 912.95 mi (1,469.25 km) |
| Sierre to Samokov | 836.26 mi (1,345.83 km) |
| Sierre to Sandanski | 847.21 mi (1,363.45 km) |
| Sierre to Sevlievo | 890.99 mi (1,433.91 km) |
| Sierre to Shumen | 971.18 mi (1,562.97 km) |
| Sierre to Silistra | 969.45 mi (1,560.19 km) |
| Sierre to Sliven | 957.16 mi (1,540.39 km) |
