| Willimantic to Hutchinson (Kansas) | 1,380.01 mi (2,220.91 km) |
| Willimantic to Hutchinson (Minnesota) | 1,132.10 mi (1,821.94 km) |
| Willimantic to Hutto (Texas) | 1,602.21 mi (2,578.51 km) |
| Willimantic to Hyattsville (Maryland) | 314.02 mi (505.36 km) |
| Willimantic to Hybla Valley (Virginia) | 328.66 mi (528.93 km) |
| Willimantic to Idaho Falls (Idaho) | 2,009.71 mi (3,234.31 km) |
| Willimantic to Idylwood (Virginia) | 327.65 mi (527.30 km) |
| Willimantic to Ilchester (Maryland) | 295.18 mi (475.05 km) |
| Willimantic to Immokalee (Florida) | 1,179.10 mi (1,897.58 km) |
| Willimantic to Imperial (California) | 2,434.21 mi (3,917.49 km) |
| Willimantic to Imperial Beach (California) | 2,522.55 mi (4,059.65 km) |
| Willimantic to Independence (Kentucky) | 676.64 mi (1,088.95 km) |
| Willimantic to Independence (Missouri) | 1,175.58 mi (1,891.91 km) |
| Willimantic to Indian Trail (North Carolina) | 647.07 mi (1,041.36 km) |
| Willimantic to Indiana (Pennsylvania) | 368.88 mi (593.66 km) |
