| Mont-de-Marsan to Sangeorz-Bai | 1,234.43 mi (1,986.62 km) |
| Mont-de-Marsan to Sannicolau Mare | 1,039.62 mi (1,673.11 km) |
| Mont-de-Marsan to Santana | 1,082.35 mi (1,741.88 km) |
| Mont-de-Marsan to Satu Mare | 1,152.85 mi (1,855.33 km) |
| Mont-de-Marsan to Scobinti | 1,339.85 mi (2,156.28 km) |
| Mont-de-Marsan to Scornicesti | 1,236.21 mi (1,989.48 km) |
| Mont-de-Marsan to Sebes | 1,181.59 mi (1,901.59 km) |
| Mont-de-Marsan to Seini | 1,170.91 mi (1,884.40 km) |
| Mont-de-Marsan to Sfantu-Gheorghe | 1,288.38 mi (2,073.45 km) |
| Mont-de-Marsan to Sibiu | 1,210.00 mi (1,947.31 km) |
| Mont-de-Marsan to Sighetu Marmatiei | 1,199.94 mi (1,931.11 km) |
| Mont-de-Marsan to Sighisoara | 1,239.54 mi (1,994.85 km) |
| Mont-de-Marsan to Simeria | 1,154.91 mi (1,858.65 km) |
| Mont-de-Marsan to Sinaia | 1,279.54 mi (2,059.22 km) |
| Mont-de-Marsan to Slatina | 1,228.27 mi (1,976.71 km) |
