| Shannon to Queluz | 964.89 mi (1,552.84 km) |
| Shannon to Reguengos de Monsaraz | 989.89 mi (1,593.08 km) |
| Shannon to Resende | 803.13 mi (1,292.52 km) |
| Shannon to Ribeira Brava | 1,442.75 mi (2,321.88 km) |
| Shannon to Ribeira Grande | 1,302.88 mi (2,096.78 km) |
| Shannon to Rio de Mouro | 963.75 mi (1,551.00 km) |
| Shannon to Rio Maior | 924.50 mi (1,487.84 km) |
| Shannon to Rio Tinto | 797.17 mi (1,282.92 km) |
| Shannon to Sabugal | 858.38 mi (1,381.43 km) |
| Shannon to Sacavem | 961.80 mi (1,547.86 km) |
| Shannon to Salvaterra de Magos | 946.38 mi (1,523.05 km) |
| Shannon to Santa Comba Dao | 851.53 mi (1,370.41 km) |
| Shannon to Santa Cruz | 1,439.28 mi (2,316.30 km) |
| Shannon to Santa Iria da Azoia | 958.19 mi (1,542.07 km) |
| Shannon to Santarem | 931.40 mi (1,498.95 km) |
