| Pontneddfechan to Somersworth (New Hampshire) | 3,080.80 mi (4,958.06 km) |
| Pontneddfechan to Somerton (Arizona) | 5,278.04 mi (8,494.18 km) |
| Pontneddfechan to Somerville (Massachusetts) | 3,124.63 mi (5,028.61 km) |
| Pontneddfechan to Somerville (New Jersey) | 3,345.27 mi (5,383.70 km) |
| Pontneddfechan to Sonoma (California) | 5,209.69 mi (8,384.19 km) |
| Pontneddfechan to Soquel (California) | 5,267.96 mi (8,477.97 km) |
| Pontneddfechan to South Bend (Indiana) | 3,763.60 mi (6,056.93 km) |
| Pontneddfechan to South Bradenton (Florida) | 4,294.71 mi (6,911.67 km) |
| Pontneddfechan to South Burlington (Vermont) | 3,127.26 mi (5,032.84 km) |
| Pontneddfechan to South Charleston (West Virginia) | 3,734.39 mi (6,009.91 km) |
| Pontneddfechan to South Daytona (Florida) | 4,143.34 mi (6,668.06 km) |
| Pontneddfechan to South El Monte (California) | 5,310.38 mi (8,546.23 km) |
| Pontneddfechan to South Elgin (Illinois) | 3,828.38 mi (6,161.19 km) |
| Pontneddfechan to South Euclid (Ohio) | 3,583.56 mi (5,767.19 km) |
| Pontneddfechan to South Farmingdale (New York) | 3,291.15 mi (5,296.59 km) |
