| Donegal to Zottegem | 561.55 mi (903.72 km) |
| Donegal to Zulte | 546.21 mi (879.04 km) |
| Donegal to Zwevegem | 546.97 mi (880.26 km) |
| Donegal to Zwijndrecht | 568.98 mi (915.69 km) |
| Donegal to Asenovgrad | 1,725.26 mi (2,776.53 km) |
| Donegal to Aytos | 1,786.54 mi (2,875.15 km) |
| Donegal to Balchik | 1,790.52 mi (2,881.56 km) |
| Donegal to Bankya | 1,627.71 mi (2,619.55 km) |
| Donegal to Bansko | 1,681.04 mi (2,705.38 km) |
| Donegal to Berkovitsa | 1,602.96 mi (2,579.72 km) |
| Donegal to Blagoevgrad | 1,657.83 mi (2,668.02 km) |
| Donegal to Botevgrad | 1,643.57 mi (2,645.06 km) |
| Donegal to Burgas | 1,803.86 mi (2,903.04 km) |
| Donegal to Byala Slatina | 1,623.99 mi (2,613.56 km) |
| Donegal to Chirpan | 1,734.43 mi (2,791.30 km) |
