| Alpena to Sinop | 5,328.28 mi (8,575.03 km) |
| Alpena to Siran | 5,556.15 mi (8,941.76 km) |
| Alpena to Sirnak | 5,810.78 mi (9,351.55 km) |
| Alpena to Sirvan | 5,766.53 mi (9,280.33 km) |
| Alpena to Sivas | 5,511.90 mi (8,870.54 km) |
| Alpena to Sivasli | 5,326.09 mi (8,571.51 km) |
| Alpena to Siverek | 5,696.96 mi (9,168.38 km) |
| Alpena to Sivrice | 5,658.27 mi (9,106.11 km) |
| Alpena to Sivrihisar | 5,341.86 mi (8,596.90 km) |
| Alpena to Sogut | 5,264.74 mi (8,472.78 km) |
| Alpena to Sogutlu | 5,229.90 mi (8,416.70 km) |
| Alpena to Soke | 5,280.42 mi (8,498.01 km) |
| Alpena to Solhan | 5,685.04 mi (9,149.19 km) |
| Alpena to Soma | 5,214.88 mi (8,392.55 km) |
| Alpena to Sorgun | 5,447.80 mi (8,767.38 km) |
