| Irmo to Quarteira | 4,006.54 mi (6,447.91 km) |
| Irmo to Queluz | 3,907.01 mi (6,287.72 km) |
| Irmo to Reguengos de Monsaraz | 4,002.90 mi (6,442.05 km) |
| Irmo to Resende | 3,919.51 mi (6,307.85 km) |
| Irmo to Ribeira Brava | 3,637.77 mi (5,854.43 km) |
| Irmo to Ribeira Grande | 3,078.41 mi (4,954.22 km) |
| Irmo to Rio de Mouro | 3,903.24 mi (6,281.65 km) |
| Irmo to Rio Maior | 3,910.63 mi (6,293.55 km) |
| Irmo to Rio Tinto | 3,888.51 mi (6,257.96 km) |
| Irmo to Sabugal | 3,980.10 mi (6,405.34 km) |
| Irmo to Sacavem | 3,914.21 mi (6,299.31 km) |
| Irmo to Salvaterra de Magos | 3,925.44 mi (6,317.38 km) |
| Irmo to Santa Comba Dao | 3,927.57 mi (6,320.82 km) |
| Irmo to Santa Cruz | 3,651.40 mi (5,876.35 km) |
| Irmo to Santa Iria da Azoia | 3,913.89 mi (6,298.80 km) |
