| Kastamonu to Smyrna (Delaware) | 5,316.50 mi (8,556.07 km) |
| Kastamonu to Smyrna (Georgia) | 5,929.22 mi (9,542.16 km) |
| Kastamonu to Smyrna (Tennessee) | 5,894.20 mi (9,485.79 km) |
| Kastamonu to Snellville (Georgia) | 5,910.04 mi (9,511.29 km) |
| Kastamonu to Snoqualmie (Washington) | 6,115.10 mi (9,841.30 km) |
| Kastamonu to Snyder (Texas) | 6,562.34 mi (10,561.07 km) |
| Kastamonu to Socastee (South Carolina) | 5,722.96 mi (9,210.21 km) |
| Kastamonu to Socorro (Texas) | 6,786.14 mi (10,921.24 km) |
| Kastamonu to Soddy-Daisy (Tennessee) | 5,881.64 mi (9,465.58 km) |
| Kastamonu to Solana Beach (California) | 6,977.91 mi (11,229.86 km) |
| Kastamonu to Soledad (California) | 6,834.34 mi (10,998.80 km) |
| Kastamonu to Solon (Ohio) | 5,432.75 mi (8,743.17 km) |
| Kastamonu to Somers Point (New Jersey) | 5,276.32 mi (8,491.42 km) |
| Kastamonu to Somerset (Kentucky) | 5,766.25 mi (9,279.89 km) |
| Kastamonu to Somerset (New Jersey) | 5,216.33 mi (8,394.87 km) |
