| Pontypridd to Superior (Colorado) | 4,565.34 mi (7,347.21 km) |
| Pontypridd to Superior (Wisconsin) | 3,770.57 mi (6,068.15 km) |
| Pontypridd to Surprise (Arizona) | 5,154.90 mi (8,296.01 km) |
| Pontypridd to Susanville (California) | 5,047.46 mi (8,123.11 km) |
| Pontypridd to Sussex (Wisconsin) | 3,787.04 mi (6,094.65 km) |
| Pontypridd to Suwanee (Georgia) | 4,045.42 mi (6,510.47 km) |
| Pontypridd to Swansea (Illinois) | 4,068.11 mi (6,546.99 km) |
| Pontypridd to Sweetwater (Florida) | 4,297.88 mi (6,916.76 km) |
| Pontypridd to Sweetwater (Texas) | 4,776.37 mi (7,686.82 km) |
| Pontypridd to Sycamore (Illinois) | 3,856.45 mi (6,206.35 km) |
| Pontypridd to Sylacauga (Alabama) | 4,177.65 mi (6,723.29 km) |
| Pontypridd to Sylvania (Ohio) | 3,675.67 mi (5,915.42 km) |
| Pontypridd to Syosset (New York) | 3,302.24 mi (5,314.45 km) |
| Pontypridd to Syracuse (New York) | 3,316.51 mi (5,337.40 km) |
| Pontypridd to Syracuse (Utah) | 4,740.39 mi (7,628.92 km) |
