| Louth to Quarteira | 1,191.20 mi (1,917.05 km) |
| Louth to Queluz | 1,100.96 mi (1,771.83 km) |
| Louth to Reguengos de Monsaraz | 1,093.07 mi (1,759.13 km) |
| Louth to Resende | 924.39 mi (1,487.67 km) |
| Louth to Ribeira Brava | 1,658.80 mi (2,669.58 km) |
| Louth to Ribeira Grande | 1,619.92 mi (2,607.00 km) |
| Louth to Rio de Mouro | 1,101.09 mi (1,772.03 km) |
| Louth to Rio Maior | 1,057.04 mi (1,701.15 km) |
| Louth to Rio Tinto | 931.21 mi (1,498.64 km) |
| Louth to Sabugal | 958.38 mi (1,542.36 km) |
| Louth to Sacavem | 1,095.16 mi (1,762.49 km) |
| Louth to Salvaterra de Magos | 1,074.80 mi (1,729.73 km) |
| Louth to Santa Comba Dao | 972.87 mi (1,565.68 km) |
| Louth to Santa Cruz | 1,652.58 mi (2,659.57 km) |
| Louth to Santa Iria da Azoia | 1,091.47 mi (1,756.55 km) |
