| Pontypridd to Somersworth (New Hampshire) | 3,093.96 mi (4,979.25 km) |
| Pontypridd to Somerton (Arizona) | 5,292.79 mi (8,517.93 km) |
| Pontypridd to Somerville (Massachusetts) | 3,137.70 mi (5,049.63 km) |
| Pontypridd to Somerville (New Jersey) | 3,358.36 mi (5,404.76 km) |
| Pontypridd to Sonoma (California) | 5,224.63 mi (8,408.24 km) |
| Pontypridd to Soquel (California) | 5,282.90 mi (8,502.00 km) |
| Pontypridd to South Bend (Indiana) | 3,777.58 mi (6,079.44 km) |
| Pontypridd to South Bradenton (Florida) | 4,306.93 mi (6,931.34 km) |
| Pontypridd to South Burlington (Vermont) | 3,140.76 mi (5,054.56 km) |
| Pontypridd to South Charleston (West Virginia) | 3,747.75 mi (6,031.43 km) |
| Pontypridd to South Daytona (Florida) | 4,155.59 mi (6,687.78 km) |
| Pontypridd to South El Monte (California) | 5,325.24 mi (8,570.15 km) |
| Pontypridd to South Elgin (Illinois) | 3,842.50 mi (6,183.91 km) |
| Pontypridd to South Euclid (Ohio) | 3,597.25 mi (5,789.22 km) |
| Pontypridd to South Farmingdale (New York) | 3,304.16 mi (5,317.53 km) |
