| Willimantic to Isabela (Puerto Rico) | 1,633.10 mi (2,628.22 km) |
| Willimantic to Iselin (New Jersey) | 135.23 mi (217.64 km) |
| Willimantic to Isla Vista (California) | 2,606.77 mi (4,195.19 km) |
| Willimantic to Issaquah (Washington) | 2,440.27 mi (3,927.23 km) |
| Willimantic to Ithaca (New York) | 225.72 mi (363.26 km) |
| Willimantic to Ives Estates (Florida) | 1,179.36 mi (1,897.99 km) |
| Willimantic to Jackson (Michigan) | 626.75 mi (1,008.65 km) |
| Willimantic to Jackson (Mississippi) | 1,182.89 mi (1,903.67 km) |
| Willimantic to Jackson (Missouri) | 974.30 mi (1,567.99 km) |
| Willimantic to Jackson (Tennessee) | 987.41 mi (1,589.08 km) |
| Willimantic to Jackson (Wyoming) | 1,947.64 mi (3,134.43 km) |
| Willimantic to Jacksonville (Alabama) | 917.82 mi (1,477.09 km) |
| Willimantic to Jacksonville (Arkansas) | 1,175.23 mi (1,891.35 km) |
| Willimantic to Jacksonville (Florida) | 946.48 mi (1,523.21 km) |
| Willimantic to Jacksonville (Illinois) | 951.76 mi (1,531.71 km) |
