| Duffel to Storm Lake (Iowa) | 4,373.80 mi (7,038.95 km) |
| Duffel to Storrs (Connecticut) | 3,540.92 mi (5,698.55 km) |
| Duffel to Stoughton (Wisconsin) | 4,145.53 mi (6,671.59 km) |
| Duffel to Stow (Ohio) | 3,933.05 mi (6,329.64 km) |
| Duffel to Streamwood (Illinois) | 4,150.05 mi (6,678.86 km) |
| Duffel to Streator (Illinois) | 4,217.29 mi (6,787.07 km) |
| Duffel to Streetsboro (Ohio) | 3,926.71 mi (6,319.43 km) |
| Duffel to Strongsville (Ohio) | 3,942.20 mi (6,344.36 km) |
| Duffel to Stuart (Florida) | 4,560.39 mi (7,339.24 km) |
| Duffel to Stuarts Draft (Virginia) | 3,984.16 mi (6,411.88 km) |
| Duffel to Sturgis (Michigan) | 4,057.04 mi (6,529.18 km) |
| Duffel to Suamico (Wisconsin) | 4,022.73 mi (6,473.95 km) |
| Duffel to Sudley (Virginia) | 3,886.67 mi (6,254.98 km) |
| Duffel to Suffern (New York) | 3,647.25 mi (5,869.68 km) |
| Duffel to Suffolk (Virginia) | 3,948.62 mi (6,354.69 km) |
