| Isernia to Sanary-sur-Mer | 443.11 mi (713.12 km) |
| Isernia to Sannois | 772.00 mi (1,242.41 km) |
| Isernia to Saran | 746.77 mi (1,201.81 km) |
| Isernia to Sarcelles | 768.51 mi (1,236.80 km) |
| Isernia to Sarlat-la-Caneda | 692.73 mi (1,114.84 km) |
| Isernia to Sarrebourg | 603.84 mi (971.79 km) |
| Isernia to Sarreguemines | 624.05 mi (1,004.30 km) |
| Isernia to Sartrouville | 773.96 mi (1,245.57 km) |
| Isernia to Sarzeau | 929.33 mi (1,495.60 km) |
| Isernia to Sassenage | 496.82 mi (799.56 km) |
| Isernia to Saumur | 805.53 mi (1,296.38 km) |
| Isernia to Savenay | 889.06 mi (1,430.81 km) |
| Isernia to Saverne | 595.70 mi (958.68 km) |
| Isernia to Savigny-le-Temple | 744.16 mi (1,197.60 km) |
| Isernia to Savigny-sur-Orge | 756.81 mi (1,217.97 km) |
