| Opelika to Sestu | 5,049.27 mi (8,126.02 km) |
| Opelika to Settimo Torinese | 4,803.19 mi (7,729.99 km) |
| Opelika to Seveso | 4,846.97 mi (7,800.45 km) |
| Opelika to Sezze | 5,156.59 mi (8,298.74 km) |
| Opelika to Siano | 5,254.01 mi (8,455.50 km) |
| Opelika to Siena | 5,017.62 mi (8,075.09 km) |
| Opelika to Signa | 4,992.03 mi (8,033.90 km) |
| Opelika to Silea | 4,981.60 mi (8,017.11 km) |
| Opelika to Silvi Paese | 5,166.29 mi (8,314.35 km) |
| Opelika to Sinalunga | 5,038.72 mi (8,109.03 km) |
| Opelika to Siniscola | 5,035.11 mi (8,103.22 km) |
| Opelika to Sinnai | 5,054.38 mi (8,134.25 km) |
| Opelika to Siracusa | 5,417.26 mi (8,718.24 km) |
| Opelika to Solaro | 4,845.55 mi (7,798.16 km) |
| Opelika to Soliera | 4,953.04 mi (7,971.15 km) |
