| Key Largo to Schaffhausen | 4,911.49 mi (7,904.29 km) |
| Key Largo to Schlieren | 4,909.33 mi (7,900.80 km) |
| Key Largo to Schubelbach | 4,935.26 mi (7,942.54 km) |
| Key Largo to Schwyz | 4,926.04 mi (7,927.69 km) |
| Key Largo to Sierre | 4,889.71 mi (7,869.23 km) |
| Key Largo to Sion | 4,883.40 mi (7,859.07 km) |
| Key Largo to Solothurn | 4,871.78 mi (7,840.37 km) |
| Key Largo to Spiez | 4,888.24 mi (7,866.86 km) |
| Key Largo to Spreitenbach | 4,905.26 mi (7,894.26 km) |
| Key Largo to Stafa | 4,925.10 mi (7,926.18 km) |
| Key Largo to Stans | 4,913.86 mi (7,908.10 km) |
| Key Largo to Steffisburg | 4,885.08 mi (7,861.77 km) |
| Key Largo to Stegen | 4,922.10 mi (7,921.36 km) |
| Key Largo to Steinhaus | 4,915.02 mi (7,909.96 km) |
| Key Largo to Suhr | 4,893.28 mi (7,874.97 km) |
