| Gretna to Los Llanos de Aridane | 4,271.42 mi (6,874.19 km) |
| Gretna to Los Palacios y Villafranca | 4,709.90 mi (7,579.86 km) |
| Gretna to Luanco | 4,560.36 mi (7,339.19 km) |
| Gretna to Lucena | 4,777.17 mi (7,688.11 km) |
| Gretna to Lugo | 4,489.90 mi (7,225.79 km) |
| Gretna to Lumbreras | 4,907.83 mi (7,898.39 km) |
| Gretna to Madrid | 4,737.90 mi (7,624.91 km) |
| Gretna to Madridejos | 4,770.73 mi (7,677.75 km) |
| Gretna to Mahon | 5,137.20 mi (8,267.52 km) |
| Gretna to Mairena del Alcor | 4,714.43 mi (7,587.14 km) |
| Gretna to Mairena del Aljarafe | 4,698.26 mi (7,561.12 km) |
| Gretna to Majadahonda | 4,728.22 mi (7,609.33 km) |
| Gretna to Malaga | 4,798.38 mi (7,722.25 km) |
| Gretna to Malgrat de Mar | 5,013.11 mi (8,067.82 km) |
| Gretna to Manacor | 5,096.40 mi (8,201.86 km) |
