| Boynton Beach to Smyrna (Delaware) | 919.02 mi (1,479.02 km) |
| Boynton Beach to Smyrna (Georgia) | 571.69 mi (920.04 km) |
| Boynton Beach to Smyrna (Tennessee) | 754.78 mi (1,214.70 km) |
| Boynton Beach to Snellville (Georgia) | 557.75 mi (897.61 km) |
| Boynton Beach to Snoqualmie (Washington) | 2,676.07 mi (4,306.72 km) |
| Boynton Beach to Snyder (Texas) | 1,319.39 mi (2,123.35 km) |
| Boynton Beach to Socastee (South Carolina) | 498.76 mi (802.68 km) |
| Boynton Beach to Socorro (Texas) | 1,615.47 mi (2,599.85 km) |
| Boynton Beach to Soddy-Daisy (Tennessee) | 674.20 mi (1,085.02 km) |
| Boynton Beach to Solana Beach (California) | 2,262.08 mi (3,640.47 km) |
| Boynton Beach to Soledad (California) | 2,505.23 mi (4,031.78 km) |
| Boynton Beach to Solon (Ohio) | 1,029.53 mi (1,656.86 km) |
| Boynton Beach to Somers Point (New Jersey) | 938.40 mi (1,510.21 km) |
| Boynton Beach to Somerset (Kentucky) | 776.00 mi (1,248.86 km) |
| Boynton Beach to Somerset (New Jersey) | 1,017.42 mi (1,637.38 km) |
