| Duncan to Senftenberg | 5,208.57 mi (8,382.39 km) |
| Duncan to Siegburg | 4,997.45 mi (8,042.62 km) |
| Duncan to Siegen | 5,023.80 mi (8,085.02 km) |
| Duncan to Sigmaringen | 5,178.03 mi (8,333.23 km) |
| Duncan to Simbach am Inn | 5,311.17 mi (8,547.49 km) |
| Duncan to Simmerath | 4,971.92 mi (8,001.53 km) |
| Duncan to Sindelfingen | 5,145.03 mi (8,280.13 km) |
| Duncan to Sinsheim | 5,119.31 mi (8,238.74 km) |
| Duncan to Sinzheim | 5,111.85 mi (8,226.74 km) |
| Duncan to Sinzig | 5,008.95 mi (8,061.12 km) |
| Duncan to Soest | 5,000.62 mi (8,047.73 km) |
| Duncan to Solingen | 4,979.18 mi (8,013.21 km) |
| Duncan to Soltau | 5,006.00 mi (8,056.37 km) |
| Duncan to Sommerda | 5,123.21 mi (8,245.01 km) |
| Duncan to Sondershausen | 5,106.15 mi (8,217.55 km) |
