| Johnston to Sesimbra | 4,288.90 mi (6,902.32 km) |
| Johnston to Setubal | 4,295.31 mi (6,912.63 km) |
| Johnston to Sever do Vouga | 4,237.25 mi (6,819.19 km) |
| Johnston to Silves | 4,366.55 mi (7,027.28 km) |
| Johnston to Sines | 4,317.96 mi (6,949.09 km) |
| Johnston to Sintra | 4,262.55 mi (6,859.91 km) |
| Johnston to Sobrado de Paiva | 4,230.72 mi (6,808.68 km) |
| Johnston to Sobral de Monte Agraco | 4,265.16 mi (6,864.12 km) |
| Johnston to Soure | 4,250.43 mi (6,840.40 km) |
| Johnston to Tabua | 4,265.96 mi (6,865.40 km) |
| Johnston to Tavira | 4,405.39 mi (7,089.79 km) |
| Johnston to Tomar | 4,276.76 mi (6,882.78 km) |
| Johnston to Tondela | 4,257.79 mi (6,852.25 km) |
| Johnston to Torre de Moncorvo | 4,274.59 mi (6,879.28 km) |
| Johnston to Torres Novas | 4,276.46 mi (6,882.30 km) |
