| Conwy to Southern Pines (North Carolina) | 3,751.01 mi (6,036.67 km) |
| Conwy to Southfield (Michigan) | 3,560.01 mi (5,729.28 km) |
| Conwy to Southgate (Michigan) | 3,570.33 mi (5,745.90 km) |
| Conwy to Southlake (Texas) | 4,559.13 mi (7,337.22 km) |
| Conwy to Spanaway (Washington) | 4,622.22 mi (7,438.74 km) |
| Conwy to Spanish Fork (Utah) | 4,690.05 mi (7,547.91 km) |
| Conwy to Spanish Lake (Missouri) | 3,999.64 mi (6,436.80 km) |
| Conwy to Spanish Springs (Nevada) | 4,966.79 mi (7,993.27 km) |
| Conwy to Sparks (Nevada) | 4,972.93 mi (8,003.16 km) |
| Conwy to Spartanburg (South Carolina) | 3,864.30 mi (6,218.99 km) |
| Conwy to Spearfish (South Dakota) | 4,201.25 mi (6,761.26 km) |
| Conwy to Speedway (Indiana) | 3,799.83 mi (6,115.24 km) |
| Conwy to Spencer (Iowa) | 3,969.14 mi (6,387.72 km) |
| Conwy to Spokane (Washington) | 4,452.91 mi (7,166.27 km) |
| Conwy to Spokane Valley (Washington) | 4,447.54 mi (7,157.63 km) |
