| Sleaford to Alcorcon | 888.41 mi (1,429.75 km) |
| Sleaford to Alcoy | 987.88 mi (1,589.84 km) |
| Sleaford to Alcudia | 923.28 mi (1,485.88 km) |
| Sleaford to Aldaya | 934.98 mi (1,504.71 km) |
| Sleaford to Alella | 804.56 mi (1,294.82 km) |
| Sleaford to Alfafar | 937.86 mi (1,509.34 km) |
| Sleaford to Alfaro | 749.98 mi (1,206.98 km) |
| Sleaford to Algeciras | 1,190.88 mi (1,916.54 km) |
| Sleaford to Algemesi | 953.92 mi (1,535.19 km) |
| Sleaford to Algete | 868.78 mi (1,398.16 km) |
| Sleaford to Alginet | 948.90 mi (1,527.10 km) |
| Sleaford to Alguazas | 1,033.33 mi (1,662.99 km) |
| Sleaford to Alhama de Murcia | 1,047.52 mi (1,685.81 km) |
| Sleaford to Alhaurin de la Torre | 1,145.82 mi (1,844.03 km) |
| Sleaford to Alhaurin el Grande | 1,149.26 mi (1,849.55 km) |
