| Herndon to Zottegem | 3,850.95 mi (6,197.50 km) |
| Herndon to Zulte | 3,834.81 mi (6,171.53 km) |
| Herndon to Zwevegem | 3,833.69 mi (6,169.72 km) |
| Herndon to Zwijndrecht | 3,863.54 mi (6,217.77 km) |
| Herndon to Asenovgrad | 5,018.97 mi (8,077.25 km) |
| Herndon to Aytos | 5,086.17 mi (8,185.41 km) |
| Herndon to Balchik | 5,090.89 mi (8,193.00 km) |
| Herndon to Bankya | 4,919.80 mi (7,917.65 km) |
| Herndon to Bansko | 4,969.72 mi (7,998.00 km) |
| Herndon to Berkovitsa | 4,897.42 mi (7,881.64 km) |
| Herndon to Blagoevgrad | 4,946.10 mi (7,959.98 km) |
| Herndon to Botevgrad | 4,938.30 mi (7,947.42 km) |
| Herndon to Burgas | 5,103.41 mi (8,213.14 km) |
| Herndon to Byala Slatina | 4,921.02 mi (7,919.61 km) |
| Herndon to Chirpan | 5,029.94 mi (8,094.91 km) |
