| Pontypridd to Southern Pines (North Carolina) | 3,798.36 mi (6,112.87 km) |
| Pontypridd to Southfield (Michigan) | 3,624.09 mi (5,832.40 km) |
| Pontypridd to Southgate (Michigan) | 3,633.90 mi (5,848.20 km) |
| Pontypridd to Southlake (Texas) | 4,625.07 mi (7,443.33 km) |
| Pontypridd to Spanaway (Washington) | 4,724.08 mi (7,602.68 km) |
| Pontypridd to Spanish Fork (Utah) | 4,778.45 mi (7,690.18 km) |
| Pontypridd to Spanish Lake (Missouri) | 4,065.47 mi (6,542.73 km) |
| Pontypridd to Spanish Springs (Nevada) | 5,061.56 mi (8,145.80 km) |
| Pontypridd to Sparks (Nevada) | 5,067.69 mi (8,155.65 km) |
| Pontypridd to Spartanburg (South Carolina) | 3,914.49 mi (6,299.76 km) |
| Pontypridd to Spearfish (South Dakota) | 4,287.33 mi (6,899.79 km) |
| Pontypridd to Speedway (Indiana) | 3,862.81 mi (6,216.60 km) |
| Pontypridd to Spencer (Iowa) | 4,045.97 mi (6,511.36 km) |
| Pontypridd to Spokane (Washington) | 4,552.00 mi (7,325.74 km) |
| Pontypridd to Spokane Valley (Washington) | 4,546.50 mi (7,316.89 km) |
