| South Portland to Irun | 3,330.54 mi (5,359.99 km) |
| South Portland to Isla-Cristina | 3,262.51 mi (5,250.50 km) |
| South Portland to Jaca | 3,410.70 mi (5,489.00 km) |
| South Portland to Jaen | 3,414.22 mi (5,494.66 km) |
| South Portland to Jerez de la Frontera | 3,337.01 mi (5,370.40 km) |
| South Portland to Jerez de los Caballeros | 3,252.44 mi (5,234.29 km) |
| South Portland to Jodar | 3,432.07 mi (5,523.39 km) |
| South Portland to Jumilla | 3,506.36 mi (5,642.94 km) |
| South Portland to La Algaba | 3,317.95 mi (5,339.72 km) |
| South Portland to La Baneza | 3,172.06 mi (5,104.93 km) |
| South Portland to La Carlota | 3,361.97 mi (5,410.57 km) |
| South Portland to La Carolina | 3,404.89 mi (5,479.64 km) |
| South Portland to La Corredoria | 3,144.98 mi (5,061.36 km) |
| South Portland to La Eliana | 3,507.36 mi (5,644.56 km) |
| South Portland to La Escala | 3,591.67 mi (5,780.23 km) |
