| Gladstone to Southern Pines (North Carolina) | 877.79 mi (1,412.67 km) |
| Gladstone to Southfield (Michigan) | 631.51 mi (1,016.31 km) |
| Gladstone to Southgate (Michigan) | 628.93 mi (1,012.17 km) |
| Gladstone to Southlake (Texas) | 455.95 mi (733.78 km) |
| Gladstone to Spanaway (Washington) | 1,496.52 mi (2,408.41 km) |
| Gladstone to Spanish Fork (Utah) | 909.26 mi (1,463.31 km) |
| Gladstone to Spanish Lake (Missouri) | 235.47 mi (378.95 km) |
| Gladstone to Spanish Springs (Nevada) | 1,335.95 mi (2,150.00 km) |
| Gladstone to Sparks (Nevada) | 1,339.10 mi (2,155.08 km) |
| Gladstone to Spartanburg (South Carolina) | 755.45 mi (1,215.77 km) |
| Gladstone to Spearfish (South Dakota) | 599.28 mi (964.44 km) |
| Gladstone to Speedway (Indiana) | 444.72 mi (715.71 km) |
| Gladstone to Spencer (Iowa) | 273.52 mi (440.19 km) |
| Gladstone to Spokane (Washington) | 1,280.96 mi (2,061.51 km) |
| Gladstone to Spokane Valley (Washington) | 1,272.12 mi (2,047.29 km) |
