| Pontypridd to Stephenville (Texas) | 4,704.76 mi (7,571.58 km) |
| Pontypridd to Sterling (Colorado) | 4,460.61 mi (7,178.65 km) |
| Pontypridd to Sterling (Illinois) | 3,904.35 mi (6,283.44 km) |
| Pontypridd to Sterling (Virginia) | 3,541.69 mi (5,699.80 km) |
| Pontypridd to Sterling Heights (Michigan) | 3,610.46 mi (5,810.48 km) |
| Pontypridd to Steubenville (Ohio) | 3,613.50 mi (5,815.37 km) |
| Pontypridd to Stevens Point (Wisconsin) | 3,774.69 mi (6,074.77 km) |
| Pontypridd to Stevenson Ranch (California) | 5,323.88 mi (8,567.96 km) |
| Pontypridd to Stillwater (Minnesota) | 3,871.89 mi (6,231.20 km) |
| Pontypridd to Stillwater (Oklahoma) | 4,461.14 mi (7,179.50 km) |
| Pontypridd to Stockbridge (Georgia) | 4,077.35 mi (6,561.86 km) |
| Pontypridd to Stockton (California) | 5,207.35 mi (8,380.42 km) |
| Pontypridd to Stone Ridge (Virginia) | 3,551.26 mi (5,715.20 km) |
| Pontypridd to Stonecrest (Georgia) | 4,065.88 mi (6,543.41 km) |
| Pontypridd to Stony Brook (New York) | 3,282.97 mi (5,283.43 km) |
