| Duncan to Sonneberg | 5,157.99 mi (8,300.98 km) |
| Duncan to Sonsbeck | 4,937.00 mi (7,945.33 km) |
| Duncan to Sonthofen | 5,241.18 mi (8,434.86 km) |
| Duncan to Spaichingen | 5,160.42 mi (8,304.89 km) |
| Duncan to Spelle | 4,947.47 mi (7,962.19 km) |
| Duncan to Spenge | 4,992.22 mi (8,034.21 km) |
| Duncan to Speyer | 5,099.84 mi (8,207.40 km) |
| Duncan to Spiesen-Elversberg | 5,051.58 mi (8,129.74 km) |
| Duncan to Spremberg | 5,218.52 mi (8,398.40 km) |
| Duncan to Springe | 5,026.32 mi (8,089.08 km) |
| Duncan to Sprockhovel | 4,977.62 mi (8,010.71 km) |
| Duncan to Stade | 4,969.71 mi (7,997.98 km) |
| Duncan to Stadtallendorf | 5,061.78 mi (8,146.15 km) |
| Duncan to Stadthagen | 5,010.14 mi (8,063.04 km) |
| Duncan to Stadtlohn | 4,941.98 mi (7,953.35 km) |
