| Duncan to Sudbury | 4,714.36 mi (7,587.03 km) |
| Duncan to Sunbury | 4,691.38 mi (7,550.05 km) |
| Duncan to Sunderland | 4,546.11 mi (7,316.25 km) |
| Duncan to Sunninghill | 4,683.27 mi (7,536.99 km) |
| Duncan to Surbiton | 4,696.77 mi (7,558.73 km) |
| Duncan to Sutton | 4,701.91 mi (7,566.99 km) |
| Duncan to Sutton Coldfield | 4,602.25 mi (7,406.61 km) |
| Duncan to Sutton in Ashfield | 4,605.56 mi (7,411.93 km) |
| Duncan to Sutton on Hull | 4,619.86 mi (7,434.94 km) |
| Duncan to Swadlincote | 4,605.57 mi (7,411.95 km) |
| Duncan to Swallownest | 4,595.77 mi (7,396.18 km) |
| Duncan to Swanage | 4,658.62 mi (7,497.32 km) |
| Duncan to Swindon | 4,635.34 mi (7,459.85 km) |
| Duncan to Swinton | 4,592.24 mi (7,390.49 km) |
| Duncan to Swinton | 4,553.72 mi (7,328.50 km) |
