| Diekirch to Bombarral | 1,047.12 mi (1,685.17 km) |
| Diekirch to Bougado | 920.97 mi (1,482.15 km) |
| Diekirch to Braga | 905.50 mi (1,457.26 km) |
| Diekirch to Braganca | 832.62 mi (1,339.98 km) |
| Diekirch to Cabeceiras de Basto | 891.49 mi (1,434.72 km) |
| Diekirch to Cacem | 1,078.69 mi (1,735.98 km) |
| Diekirch to Cadaval | 1,047.02 mi (1,685.01 km) |
| Diekirch to Caldas da Rainha | 1,039.16 mi (1,672.36 km) |
| Diekirch to Calheta | 1,680.25 mi (2,704.10 km) |
| Diekirch to Camara de Lobos | 1,675.16 mi (2,695.91 km) |
| Diekirch to Canico | 1,673.54 mi (2,693.30 km) |
| Diekirch to Cantanhede | 971.61 mi (1,563.65 km) |
| Diekirch to Carregal do Sal | 946.17 mi (1,522.72 km) |
| Diekirch to Cartaxo | 1,040.50 mi (1,674.52 km) |
| Diekirch to Cascais | 1,086.17 mi (1,748.02 km) |
