| Llanelli to Sugar Hill (Georgia) | 4,006.77 mi (6,448.27 km) |
| Llanelli to Sugar Land (Texas) | 4,702.58 mi (7,568.07 km) |
| Llanelli to Sugarland Run (Virginia) | 3,503.99 mi (5,639.13 km) |
| Llanelli to Sugarmill Woods (Florida) | 4,204.58 mi (6,766.62 km) |
| Llanelli to Suisun City (California) | 5,184.22 mi (8,343.19 km) |
| Llanelli to Suitland (Maryland) | 3,493.36 mi (5,622.01 km) |
| Llanelli to Sulphur (Louisiana) | 4,578.29 mi (7,368.04 km) |
| Llanelli to Sulphur Springs (Texas) | 4,520.68 mi (7,275.33 km) |
| Llanelli to Summerfield (Maryland) | 3,488.66 mi (5,614.46 km) |
| Llanelli to Summerfield (North Carolina) | 3,736.68 mi (6,013.60 km) |
| Llanelli to Summerlin South (Nevada) | 5,087.91 mi (8,188.20 km) |
| Llanelli to Summerville (South Carolina) | 3,898.79 mi (6,274.50 km) |
| Llanelli to Summit (Illinois) | 3,798.30 mi (6,112.78 km) |
| Llanelli to Summit (New Jersey) | 3,306.67 mi (5,321.57 km) |
| Llanelli to Sumner (Washington) | 4,685.09 mi (7,539.93 km) |
