| Blackburn to Smyrna (Delaware) | 3,450.78 mi (5,553.49 km) |
| Blackburn to Smyrna (Georgia) | 4,065.62 mi (6,542.98 km) |
| Blackburn to Smyrna (Tennessee) | 4,038.21 mi (6,498.87 km) |
| Blackburn to Snellville (Georgia) | 4,045.82 mi (6,511.11 km) |
| Blackburn to Snoqualmie (Washington) | 4,593.29 mi (7,392.19 km) |
| Blackburn to Snyder (Texas) | 4,748.27 mi (7,641.61 km) |
| Blackburn to Socastee (South Carolina) | 3,856.14 mi (6,205.85 km) |
| Blackburn to Socorro (Texas) | 4,999.28 mi (8,045.56 km) |
| Blackburn to Soddy-Daisy (Tennessee) | 4,021.36 mi (6,471.75 km) |
| Blackburn to Solana Beach (California) | 5,294.37 mi (8,520.46 km) |
| Blackburn to Soledad (California) | 5,220.45 mi (8,401.50 km) |
| Blackburn to Solon (Ohio) | 3,580.44 mi (5,762.16 km) |
| Blackburn to Somers Point (New Jersey) | 3,410.04 mi (5,487.93 km) |
| Blackburn to Somerset (Kentucky) | 3,908.89 mi (6,290.75 km) |
| Blackburn to Somerset (New Jersey) | 3,351.07 mi (5,393.02 km) |
