| Conwy to Security-Widefield (Colorado) | 4,530.11 mi (7,290.51 km) |
| Conwy to Sedalia (Missouri) | 4,117.69 mi (6,626.79 km) |
| Conwy to Sedro-Woolley (Washington) | 4,537.16 mi (7,301.86 km) |
| Conwy to Seguin (Texas) | 4,767.81 mi (7,673.04 km) |
| Conwy to Selden (New York) | 3,231.40 mi (5,200.44 km) |
| Conwy to Selma (Alabama) | 4,193.76 mi (6,749.20 km) |
| Conwy to Selma (California) | 5,141.36 mi (8,274.22 km) |
| Conwy to Selma (Texas) | 4,781.19 mi (7,694.59 km) |
| Conwy to Seminole (Florida) | 4,255.93 mi (6,849.26 km) |
| Conwy to Seven Hills (Ohio) | 3,549.00 mi (5,711.57 km) |
| Conwy to Seven Oaks (South Carolina) | 3,876.92 mi (6,239.29 km) |
| Conwy to Severn (Maryland) | 3,455.91 mi (5,561.75 km) |
| Conwy to Severna Park (Maryland) | 3,453.07 mi (5,557.18 km) |
| Conwy to Sevierville (Tennessee) | 3,883.64 mi (6,250.12 km) |
| Conwy to Seymour (Indiana) | 3,826.55 mi (6,158.24 km) |
