| Gretna to Irun | 4,754.87 mi (7,652.23 km) |
| Gretna to Isla-Cristina | 4,637.37 mi (7,463.12 km) |
| Gretna to Jaca | 4,833.44 mi (7,778.67 km) |
| Gretna to Jaen | 4,803.52 mi (7,730.52 km) |
| Gretna to Jerez de la Frontera | 4,711.27 mi (7,582.06 km) |
| Gretna to Jerez de los Caballeros | 4,637.71 mi (7,463.67 km) |
| Gretna to Jodar | 4,822.96 mi (7,761.80 km) |
| Gretna to Jumilla | 4,906.54 mi (7,896.31 km) |
| Gretna to La Algaba | 4,698.70 mi (7,561.83 km) |
| Gretna to La Baneza | 4,585.30 mi (7,379.33 km) |
| Gretna to La Carlota | 4,747.38 mi (7,640.16 km) |
| Gretna to La Carolina | 4,798.04 mi (7,721.70 km) |
| Gretna to La Corredoria | 4,564.04 mi (7,345.10 km) |
| Gretna to La Eliana | 4,915.63 mi (7,910.95 km) |
| Gretna to La Escala | 5,017.81 mi (8,075.38 km) |
