| Willimantic to Kalispell (Montana) | 2,079.74 mi (3,347.03 km) |
| Willimantic to Kaneohe (Hawaii) | 5,026.94 mi (8,090.07 km) |
| Willimantic to Kankakee (Illinois) | 811.13 mi (1,305.38 km) |
| Willimantic to Kannapolis (North Carolina) | 626.40 mi (1,008.10 km) |
| Willimantic to Kansas City (Kansas) | 1,195.21 mi (1,923.51 km) |
| Willimantic to Kansas City (Missouri) | 1,185.40 mi (1,907.71 km) |
| Willimantic to Kapaa (Hawaii) | 5,075.27 mi (8,167.85 km) |
| Willimantic to Kapolei (Hawaii) | 5,043.71 mi (8,117.06 km) |
| Willimantic to Katy (Texas) | 1,552.06 mi (2,497.80 km) |
| Willimantic to Kaukauna (Wisconsin) | 828.82 mi (1,333.86 km) |
| Willimantic to Kaysville (Utah) | 2,042.21 mi (3,286.62 km) |
| Willimantic to Kearney (Missouri) | 1,171.11 mi (1,884.73 km) |
| Willimantic to Kearney (Nebraska) | 1,392.88 mi (2,241.62 km) |
| Willimantic to Kearns (Utah) | 2,052.20 mi (3,302.69 km) |
| Willimantic to Kearny (New Jersey) | 119.48 mi (192.28 km) |
