| Mariehamn to Somma Lombardo | 1,097.17 mi (1,765.73 km) |
| Mariehamn to Somma Vesuviana | 1,349.17 mi (2,171.28 km) |
| Mariehamn to Sommacampagna | 1,082.03 mi (1,741.36 km) |
| Mariehamn to Sona | 1,080.07 mi (1,738.20 km) |
| Mariehamn to Sondrio | 1,046.26 mi (1,683.79 km) |
| Mariehamn to Sora | 1,298.22 mi (2,089.28 km) |
| Mariehamn to Sorbolo | 1,124.34 mi (1,809.44 km) |
| Mariehamn to Soresina | 1,104.17 mi (1,776.99 km) |
| Mariehamn to Sorisole | 1,077.83 mi (1,734.60 km) |
| Mariehamn to Sorrento | 1,366.38 mi (2,198.97 km) |
| Mariehamn to Sorso | 1,419.45 mi (2,284.38 km) |
| Mariehamn to Sortino | 1,599.22 mi (2,573.70 km) |
| Mariehamn to Soverato Marina | 1,487.09 mi (2,393.23 km) |
| Mariehamn to Sovicille | 1,217.75 mi (1,959.79 km) |
| Mariehamn to Spello | 1,220.99 mi (1,965.00 km) |
