| Port Glasgow to Saint-Esteve | 973.03 mi (1,565.95 km) |
| Port Glasgow to Saint-Etienne | 825.63 mi (1,328.72 km) |
| Port Glasgow to Saint-Etienne-du-Rouvray | 513.54 mi (826.46 km) |
| Port Glasgow to Saint-Fargeau | 595.30 mi (958.04 km) |
| Port Glasgow to Saint-Fons | 818.48 mi (1,317.21 km) |
| Port Glasgow to Saint-Gaudens | 918.15 mi (1,477.62 km) |
| Port Glasgow to Saint-Gely-du-Fesc | 925.16 mi (1,488.91 km) |
| Port Glasgow to Saint-Genis-Laval | 817.94 mi (1,316.35 km) |
| Port Glasgow to Saint-Genis-Pouilly | 813.12 mi (1,308.59 km) |
| Port Glasgow to Saint-Germain-en-Laye | 563.32 mi (906.58 km) |
| Port Glasgow to Saint-Germain-les-Arpajon | 585.33 mi (941.99 km) |
| Port Glasgow to Saint-Gilles | 937.58 mi (1,508.89 km) |
| Port Glasgow to Saint-Gratien | 562.94 mi (905.96 km) |
| Port Glasgow to Saint-Gregoire | 552.56 mi (889.26 km) |
| Port Glasgow to Saint-Herblain | 616.45 mi (992.08 km) |
