| Herndon to Iselin (New Jersey) | 196.93 mi (316.93 km) |
| Herndon to Isla Vista (California) | 2,352.85 mi (3,786.55 km) |
| Herndon to Issaquah (Washington) | 2,290.01 mi (3,685.41 km) |
| Herndon to Ithaca (New York) | 244.47 mi (393.43 km) |
| Herndon to Ives Estates (Florida) | 913.20 mi (1,469.65 km) |
| Herndon to Jackson (Michigan) | 431.79 mi (694.90 km) |
| Herndon to Jackson (Mississippi) | 853.11 mi (1,372.95 km) |
| Herndon to Jackson (Missouri) | 674.68 mi (1,085.80 km) |
| Herndon to Jackson (Tennessee) | 668.98 mi (1,076.61 km) |
| Herndon to Jackson (Wyoming) | 1,750.70 mi (2,817.48 km) |
| Herndon to Jacksonville (Alabama) | 585.88 mi (942.88 km) |
| Herndon to Jacksonville (Arkansas) | 860.77 mi (1,385.28 km) |
| Herndon to Jacksonville (Florida) | 644.44 mi (1,037.12 km) |
| Herndon to Jacksonville (Illinois) | 687.71 mi (1,106.76 km) |
| Herndon to Jacksonville (North Carolina) | 293.02 mi (471.58 km) |
