| Sliven to Zafra | 1,733.28 mi (2,789.44 km) |
| Sliven to Zamora | 1,637.35 mi (2,635.05 km) |
| Sliven to Zaragoza | 1,389.61 mi (2,236.35 km) |
| Sliven to Zarautz | 1,434.13 mi (2,308.01 km) |
| Sliven to Zuera | 1,381.70 mi (2,223.64 km) |
| Sliven to Zumaia | 1,438.49 mi (2,315.02 km) |
| Sliven to Zumarraga | 1,443.65 mi (2,323.33 km) |
| Sliven to Longyearbyen | 2,472.84 mi (3,979.66 km) |
| Sliven to Ahus | 1,059.96 mi (1,705.84 km) |
| Sliven to Akersberga | 1,209.93 mi (1,947.19 km) |
| Sliven to Alingsas | 1,211.52 mi (1,949.75 km) |
| Sliven to Almhult | 1,099.11 mi (1,768.85 km) |
| Sliven to Alta | 1,196.22 mi (1,925.14 km) |
| Sliven to Amal | 1,271.95 mi (2,047.00 km) |
| Sliven to Arboga | 1,237.88 mi (1,992.17 km) |
