| Conwy to Superior (Colorado) | 4,482.98 mi (7,214.65 km) |
| Conwy to Superior (Wisconsin) | 3,691.63 mi (5,941.11 km) |
| Conwy to Surprise (Arizona) | 5,071.57 mi (8,161.90 km) |
| Conwy to Susanville (California) | 4,951.39 mi (7,968.49 km) |
| Conwy to Sussex (Wisconsin) | 3,716.87 mi (5,981.73 km) |
| Conwy to Suwanee (Georgia) | 3,993.90 mi (6,427.56 km) |
| Conwy to Swansea (Illinois) | 4,002.87 mi (6,442.00 km) |
| Conwy to Sweetwater (Florida) | 4,264.07 mi (6,862.35 km) |
| Conwy to Sweetwater (Texas) | 4,707.24 mi (7,575.58 km) |
| Conwy to Sycamore (Illinois) | 3,787.54 mi (6,095.45 km) |
| Conwy to Sylacauga (Alabama) | 4,124.67 mi (6,638.01 km) |
| Conwy to Sylvania (Ohio) | 3,612.39 mi (5,813.57 km) |
| Conwy to Syosset (New York) | 3,252.12 mi (5,233.78 km) |
| Conwy to Syracuse (New York) | 3,259.03 mi (5,244.91 km) |
| Conwy to Syracuse (Utah) | 4,650.74 mi (7,484.64 km) |
