| South Portland to Schwaig | 3,700.29 mi (5,955.04 km) |
| South Portland to Schwaigern | 3,624.12 mi (5,832.46 km) |
| South Portland to Schwaikheim | 3,644.47 mi (5,865.21 km) |
| South Portland to Schwalbach | 3,528.71 mi (5,678.91 km) |
| South Portland to Schwalmstadt | 3,577.00 mi (5,756.62 km) |
| South Portland to Schwalmtal | 3,451.78 mi (5,555.10 km) |
| South Portland to Schwandorf | 3,741.06 mi (6,020.66 km) |
| South Portland to Schwanewede | 3,488.39 mi (5,614.02 km) |
| South Portland to Schwarzenbek | 3,552.00 mi (5,716.40 km) |
| South Portland to Schwarzenberg | 3,728.60 mi (6,000.61 km) |
| South Portland to Schwarzenbruck | 3,705.35 mi (5,963.19 km) |
| South Portland to Schwedt (Oder) | 3,706.91 mi (5,965.69 km) |
| South Portland to Schweinfurt | 3,643.69 mi (5,863.95 km) |
| South Portland to Schwelm | 3,490.42 mi (5,617.29 km) |
| South Portland to Schwerin | 3,583.45 mi (5,767.00 km) |
