| Duncan to Snodland | 4,727.52 mi (7,608.21 km) |
| Duncan to Soham | 4,690.13 mi (7,548.03 km) |
| Duncan to Solihull | 4,608.59 mi (7,416.81 km) |
| Duncan to Sompting | 4,714.03 mi (7,586.50 km) |
| Duncan to South Hayling | 4,690.91 mi (7,549.29 km) |
| Duncan to South Normanton | 4,603.09 mi (7,407.96 km) |
| Duncan to South Ockendon | 4,715.41 mi (7,588.72 km) |
| Duncan to South Shields | 4,541.65 mi (7,309.08 km) |
| Duncan to Southall | 4,690.22 mi (7,548.19 km) |
| Duncan to Southampton | 4,670.72 mi (7,516.80 km) |
| Duncan to Southborough | 4,726.23 mi (7,606.13 km) |
| Duncan to Southbourne | 4,661.28 mi (7,501.60 km) |
| Duncan to Southend | 4,730.05 mi (7,612.28 km) |
| Duncan to Southgate | 4,695.83 mi (7,557.20 km) |
| Duncan to Southport | 4,525.13 mi (7,282.49 km) |
