| Conwy to Sunbury | 192.64 mi (310.02 km) |
| Conwy to Sunderland | 149.88 mi (241.21 km) |
| Conwy to Sunninghill | 186.49 mi (300.13 km) |
| Conwy to Surbiton | 197.70 mi (318.17 km) |
| Conwy to Sutton | 202.55 mi (325.97 km) |
| Conwy to Sutton Coldfield | 97.21 mi (156.45 km) |
| Conwy to Sutton in Ashfield | 106.85 mi (171.96 km) |
| Conwy to Sutton on Hull | 148.84 mi (239.53 km) |
| Conwy to Swadlincote | 100.71 mi (162.08 km) |
| Conwy to Swallownest | 103.53 mi (166.62 km) |
| Conwy to Swanage | 201.05 mi (323.55 km) |
| Conwy to Swindon | 146.91 mi (236.42 km) |
| Conwy to Swinton | 104.63 mi (168.39 km) |
| Conwy to Swinton | 63.40 mi (102.03 km) |
| Conwy to Syston | 121.18 mi (195.03 km) |
