| Pontneddfechan to Stephenville (Texas) | 4,690.78 mi (7,549.08 km) |
| Pontneddfechan to Sterling (Colorado) | 4,445.95 mi (7,155.06 km) |
| Pontneddfechan to Sterling (Illinois) | 3,890.17 mi (6,260.63 km) |
| Pontneddfechan to Sterling (Virginia) | 3,528.58 mi (5,678.70 km) |
| Pontneddfechan to Sterling Heights (Michigan) | 3,596.58 mi (5,788.13 km) |
| Pontneddfechan to Steubenville (Ohio) | 3,599.99 mi (5,793.63 km) |
| Pontneddfechan to Stevens Point (Wisconsin) | 3,760.33 mi (6,051.66 km) |
| Pontneddfechan to Stevenson Ranch (California) | 5,309.00 mi (8,544.01 km) |
| Pontneddfechan to Stillwater (Minnesota) | 3,857.37 mi (6,207.84 km) |
| Pontneddfechan to Stillwater (Oklahoma) | 4,446.97 mi (7,156.70 km) |
| Pontneddfechan to Stockbridge (Georgia) | 4,064.29 mi (6,540.84 km) |
| Pontneddfechan to Stockton (California) | 5,192.41 mi (8,356.38 km) |
| Pontneddfechan to Stone Ridge (Virginia) | 3,538.14 mi (5,694.09 km) |
| Pontneddfechan to Stonecrest (Georgia) | 4,052.82 mi (6,522.38 km) |
| Pontneddfechan to Stony Brook (New York) | 3,269.96 mi (5,262.49 km) |
