| The Dalles to Smithville (Missouri) | 1,414.19 mi (2,275.92 km) |
| The Dalles to Smyrna (Delaware) | 2,331.63 mi (3,752.40 km) |
| The Dalles to Smyrna (Georgia) | 2,087.74 mi (3,359.89 km) |
| The Dalles to Smyrna (Tennessee) | 1,913.52 mi (3,079.52 km) |
| The Dalles to Snellville (Georgia) | 2,112.46 mi (3,399.67 km) |
| The Dalles to Snoqualmie (Washington) | 136.57 mi (219.80 km) |
| The Dalles to Snyder (Texas) | 1,397.46 mi (2,249.00 km) |
| The Dalles to Socastee (South Carolina) | 2,358.32 mi (3,795.35 km) |
| The Dalles to Socorro (Texas) | 1,252.70 mi (2,016.03 km) |
| The Dalles to Soddy-Daisy (Tennessee) | 2,003.99 mi (3,225.11 km) |
| The Dalles to Solana Beach (California) | 895.94 mi (1,441.88 km) |
| The Dalles to Soledad (California) | 633.09 mi (1,018.87 km) |
| The Dalles to Solon (Ohio) | 1,992.35 mi (3,206.37 km) |
| The Dalles to Somers Point (New Jersey) | 2,379.08 mi (3,828.75 km) |
| The Dalles to Somerset (Kentucky) | 1,966.99 mi (3,165.56 km) |
