| Ironton to Quarteira | 3,953.03 mi (6,361.78 km) |
| Ironton to Queluz | 3,845.73 mi (6,189.10 km) |
| Ironton to Reguengos de Monsaraz | 3,940.26 mi (6,341.24 km) |
| Ironton to Resende | 3,841.62 mi (6,182.49 km) |
| Ironton to Ribeira Brava | 3,630.75 mi (5,843.13 km) |
| Ironton to Ribeira Grande | 3,053.04 mi (4,913.40 km) |
| Ironton to Rio de Mouro | 3,841.98 mi (6,183.07 km) |
| Ironton to Rio Maior | 3,845.20 mi (6,188.24 km) |
| Ironton to Rio Tinto | 3,811.22 mi (6,133.57 km) |
| Ironton to Sabugal | 3,905.14 mi (6,284.71 km) |
| Ironton to Sacavem | 3,852.36 mi (6,199.77 km) |
| Ironton to Salvaterra de Magos | 3,861.63 mi (6,214.69 km) |
| Ironton to Santa Comba Dao | 3,854.20 mi (6,202.73 km) |
| Ironton to Santa Cruz | 3,643.80 mi (5,864.12 km) |
| Ironton to Santa Iria da Azoia | 3,851.69 mi (6,198.70 km) |
