| Willimantic to Kingsville (Texas) | 1,747.22 mi (2,811.88 km) |
| Willimantic to Kinston (North Carolina) | 531.58 mi (855.49 km) |
| Willimantic to Kirkland (Washington) | 2,445.85 mi (3,936.21 km) |
| Willimantic to Kirksville (Missouri) | 1,065.22 mi (1,714.30 km) |
| Willimantic to Kirkwood (Missouri) | 983.80 mi (1,583.28 km) |
| Willimantic to Kiryas Joel (New York) | 104.42 mi (168.04 km) |
| Willimantic to Kissimmee (Florida) | 1,061.59 mi (1,708.47 km) |
| Willimantic to Klamath Falls (Oregon) | 2,509.56 mi (4,038.74 km) |
| Willimantic to Knightdale (North Carolina) | 531.03 mi (854.61 km) |
| Willimantic to Knik-Fairview (Alaska) | 3,351.93 mi (5,394.41 km) |
| Willimantic to Knoxville (Tennessee) | 745.12 mi (1,199.16 km) |
| Willimantic to Kokomo (Indiana) | 729.01 mi (1,173.23 km) |
| Willimantic to Kuna (Idaho) | 2,223.77 mi (3,578.81 km) |
| Willimantic to Kyle (Texas) | 1,640.94 mi (2,640.83 km) |
| Willimantic to La Cañada Flintridge (California) | 2,527.41 mi (4,067.47 km) |
