| Willimantic to Kennewick (Washington) | 2,321.72 mi (3,736.44 km) |
| Willimantic to Kenosha (Wisconsin) | 803.56 mi (1,293.20 km) |
| Willimantic to Kent (Ohio) | 475.36 mi (765.01 km) |
| Willimantic to Kent (Washington) | 2,449.67 mi (3,942.36 km) |
| Willimantic to Kentwood (Michigan) | 687.82 mi (1,106.94 km) |
| Willimantic to Kerman (California) | 2,551.38 mi (4,106.04 km) |
| Willimantic to Kernersville (North Carolina) | 573.49 mi (922.94 km) |
| Willimantic to Kerrville (Texas) | 1,699.28 mi (2,734.72 km) |
| Willimantic to Kettering (Maryland) | 310.35 mi (499.46 km) |
| Willimantic to Kettering (Ohio) | 640.11 mi (1,030.16 km) |
| Willimantic to Kewanee (Illinois) | 915.99 mi (1,474.15 km) |
| Willimantic to Key Biscayne (Florida) | 1,196.60 mi (1,925.75 km) |
| Willimantic to Key Largo (Florida) | 1,238.78 mi (1,993.62 km) |
| Willimantic to Key West (Florida) | 1,305.92 mi (2,101.67 km) |
| Willimantic to Keystone (Florida) | 1,105.97 mi (1,779.89 km) |
