| Allentown to Zottegem | 3,700.89 mi (5,956.01 km) |
| Allentown to Zulte | 3,684.77 mi (5,930.07 km) |
| Allentown to Zwevegem | 3,683.71 mi (5,928.35 km) |
| Allentown to Zwijndrecht | 3,713.30 mi (5,975.99 km) |
| Allentown to Asenovgrad | 4,869.09 mi (7,836.04 km) |
| Allentown to Aytos | 4,935.73 mi (7,943.28 km) |
| Allentown to Balchik | 4,940.16 mi (7,950.43 km) |
| Allentown to Bankya | 4,770.00 mi (7,676.58 km) |
| Allentown to Bansko | 4,820.16 mi (7,757.29 km) |
| Allentown to Berkovitsa | 4,747.46 mi (7,640.30 km) |
| Allentown to Blagoevgrad | 4,796.55 mi (7,719.30 km) |
| Allentown to Botevgrad | 4,788.33 mi (7,706.07 km) |
| Allentown to Burgas | 4,952.98 mi (7,971.05 km) |
| Allentown to Byala Slatina | 4,770.86 mi (7,677.95 km) |
| Allentown to Chirpan | 4,879.93 mi (7,853.48 km) |
