| Pontneddfechan to Southern Pines (North Carolina) | 3,785.54 mi (6,092.25 km) |
| Pontneddfechan to Southfield (Michigan) | 3,610.20 mi (5,810.05 km) |
| Pontneddfechan to Southgate (Michigan) | 3,620.04 mi (5,825.90 km) |
| Pontneddfechan to Southlake (Texas) | 4,611.10 mi (7,420.85 km) |
| Pontneddfechan to Spanaway (Washington) | 4,709.20 mi (7,578.72 km) |
| Pontneddfechan to Spanish Fork (Utah) | 4,763.60 mi (7,666.28 km) |
| Pontneddfechan to Spanish Lake (Missouri) | 4,051.49 mi (6,520.25 km) |
| Pontneddfechan to Spanish Springs (Nevada) | 5,046.63 mi (8,121.76 km) |
| Pontneddfechan to Sparks (Nevada) | 5,052.75 mi (8,131.61 km) |
| Pontneddfechan to Spartanburg (South Carolina) | 3,901.48 mi (6,278.82 km) |
| Pontneddfechan to Spearfish (South Dakota) | 4,272.53 mi (6,875.97 km) |
| Pontneddfechan to Speedway (Indiana) | 3,848.99 mi (6,194.36 km) |
| Pontneddfechan to Spencer (Iowa) | 4,031.47 mi (6,488.03 km) |
| Pontneddfechan to Spokane (Washington) | 4,537.07 mi (7,301.71 km) |
| Pontneddfechan to Spokane Valley (Washington) | 4,531.57 mi (7,292.86 km) |
