| Gretna to Sabadell | 4,986.08 mi (8,024.33 km) |
| Gretna to Sabinanigo | 4,843.00 mi (7,794.06 km) |
| Gretna to Sagunto | 4,924.99 mi (7,926.00 km) |
| Gretna to Salamanca | 4,628.42 mi (7,448.73 km) |
| Gretna to Salobrena | 4,840.17 mi (7,789.50 km) |
| Gretna to Salou | 4,953.25 mi (7,971.49 km) |
| Gretna to Salt | 5,005.65 mi (8,055.81 km) |
| Gretna to Salvatierra de Mino | 4,464.41 mi (7,184.77 km) |
| Gretna to Sama | 4,572.51 mi (7,358.74 km) |
| Gretna to San Adrian de Besos | 4,994.68 mi (8,038.17 km) |
| Gretna to San Agustin de Guadalix | 4,735.55 mi (7,621.13 km) |
| Gretna to San Andres de la Barca | 4,982.81 mi (8,019.06 km) |
| Gretna to San Andres de Llevaneras | 5,003.01 mi (8,051.56 km) |
| Gretna to San Andres del Rabanedo | 4,592.32 mi (7,390.63 km) |
| Gretna to San Bartolome | 4,421.55 mi (7,115.79 km) |
