| Duffel to Stephenville (Texas) | 5,021.58 mi (8,081.45 km) |
| Duffel to Sterling (Colorado) | 4,753.37 mi (7,649.82 km) |
| Duffel to Sterling (Illinois) | 4,216.84 mi (6,786.35 km) |
| Duffel to Sterling (Virginia) | 3,873.04 mi (6,233.06 km) |
| Duffel to Sterling Heights (Michigan) | 3,930.14 mi (6,324.94 km) |
| Duffel to Steubenville (Ohio) | 3,939.76 mi (6,340.43 km) |
| Duffel to Stevens Point (Wisconsin) | 4,081.50 mi (6,568.55 km) |
| Duffel to Stevenson Ranch (California) | 5,596.17 mi (9,006.16 km) |
| Duffel to Stillwater (Minnesota) | 4,172.44 mi (6,714.89 km) |
| Duffel to Stillwater (Oklahoma) | 4,773.32 mi (7,681.91 km) |
| Duffel to Stockbridge (Georgia) | 4,409.13 mi (7,095.81 km) |
| Duffel to Stockton (California) | 5,465.12 mi (8,795.26 km) |
| Duffel to Stone Ridge (Virginia) | 3,882.57 mi (6,248.40 km) |
| Duffel to Stonecrest (Georgia) | 4,397.58 mi (7,077.22 km) |
| Duffel to Stony Brook (New York) | 3,615.39 mi (5,818.41 km) |
