| Willimantic to Sunset (Florida) | 1,199.72 mi (1,930.76 km) |
| Willimantic to Superior (Colorado) | 1,716.47 mi (2,762.40 km) |
| Willimantic to Superior (Wisconsin) | 1,039.13 mi (1,672.32 km) |
| Willimantic to Surprise (Arizona) | 2,247.05 mi (3,616.27 km) |
| Willimantic to Susanville (California) | 2,489.15 mi (4,005.90 km) |
| Willimantic to Sussex (Wisconsin) | 821.17 mi (1,321.54 km) |
| Willimantic to Suwanee (Georgia) | 834.47 mi (1,342.95 km) |
| Willimantic to Swansea (Illinois) | 962.18 mi (1,548.48 km) |
| Willimantic to Sweetwater (Florida) | 1,195.54 mi (1,924.04 km) |
| Willimantic to Sweetwater (Texas) | 1,670.67 mi (2,688.68 km) |
| Willimantic to Sycamore (Illinois) | 846.53 mi (1,362.35 km) |
| Willimantic to Sylacauga (Alabama) | 968.43 mi (1,558.53 km) |
| Willimantic to Sylvania (Ohio) | 592.58 mi (953.66 km) |
| Willimantic to Syosset (New York) | 91.49 mi (147.24 km) |
| Willimantic to Syracuse (New York) | 220.53 mi (354.90 km) |
