| Cities | Distance |
|---|---|
| Sulmona to Popovo | 630.78 mi (1,015.15 km) |
| Sulmona to Provadia | 690.49 mi (1,111.24 km) |
| Sulmona to Radnevo | 614.57 mi (989.05 km) |
| Sulmona to Radomir | 462.24 mi (743.90 km) |
| Sulmona to Rakitovo | 521.11 mi (838.65 km) |
| Sulmona to Rakovski | 565.17 mi (909.56 km) |
| Sulmona to Razgrad | 645.93 mi (1,039.52 km) |
| Sulmona to Razlog | 490.01 mi (788.60 km) |
| Sulmona to Ruse | 620.06 mi (997.89 km) |
| Sulmona to Samokov | 493.07 mi (793.51 km) |
| Sulmona to Sandanski | 482.74 mi (776.90 km) |
| Sulmona to Sevlievo | 573.10 mi (922.32 km) |
| Sulmona to Shumen | 665.63 mi (1,071.23 km) |
| Sulmona to Silistra | 687.10 mi (1,105.78 km) |
| Sulmona to Sliven | 634.33 mi (1,020.86 km) |