| Herndon to Celbridge | 3,381.70 mi (5,442.32 km) |
| Herndon to Clondalkin | 3,387.77 mi (5,452.08 km) |
| Herndon to Clonmel | 3,349.47 mi (5,390.45 km) |
| Herndon to Cobh | 3,333.21 mi (5,364.28 km) |
| Herndon to Cork | 3,325.28 mi (5,351.53 km) |
| Herndon to Donegal | 3,300.40 mi (5,311.48 km) |
| Herndon to Douglas | 3,327.03 mi (5,354.34 km) |
| Herndon to Drogheda | 3,383.29 mi (5,444.88 km) |
| Herndon to Dublin | 3,392.69 mi (5,460.01 km) |
| Herndon to Dun Dealgan | 3,376.72 mi (5,434.31 km) |
| Herndon to Ennis | 3,290.11 mi (5,294.92 km) |
| Herndon to Enniscorthy | 3,394.03 mi (5,462.16 km) |
| Herndon to Finglas | 3,392.65 mi (5,459.94 km) |
| Herndon to Galway | 3,281.40 mi (5,280.91 km) |
| Herndon to Glanmire | 3,327.89 mi (5,355.72 km) |
