| Cwmbran to Superior (Colorado) | 4,574.62 mi (7,362.14 km) |
| Cwmbran to Superior (Wisconsin) | 3,780.24 mi (6,083.71 km) |
| Cwmbran to Surprise (Arizona) | 5,164.07 mi (8,310.77 km) |
| Cwmbran to Susanville (California) | 5,054.69 mi (8,134.74 km) |
| Cwmbran to Sussex (Wisconsin) | 3,797.66 mi (6,111.74 km) |
| Cwmbran to Suwanee (Georgia) | 4,057.60 mi (6,530.07 km) |
| Cwmbran to Swansea (Illinois) | 4,079.21 mi (6,564.85 km) |
| Cwmbran to Sweetwater (Florida) | 4,311.08 mi (6,938.01 km) |
| Cwmbran to Sweetwater (Texas) | 4,787.12 mi (7,704.13 km) |
| Cwmbran to Sycamore (Illinois) | 3,867.19 mi (6,223.65 km) |
| Cwmbran to Sylacauga (Alabama) | 4,189.74 mi (6,742.73 km) |
| Cwmbran to Sylvania (Ohio) | 3,686.93 mi (5,933.54 km) |
| Cwmbran to Syosset (New York) | 3,314.49 mi (5,334.16 km) |
| Cwmbran to Syracuse (New York) | 3,328.22 mi (5,356.26 km) |
| Cwmbran to Syracuse (Utah) | 4,748.66 mi (7,642.24 km) |
