| Mason City to Quarteira | 4,317.24 mi (6,947.93 km) |
| Mason City to Queluz | 4,199.28 mi (6,758.08 km) |
| Mason City to Reguengos de Monsaraz | 4,289.71 mi (6,903.62 km) |
| Mason City to Resende | 4,167.10 mi (6,706.30 km) |
| Mason City to Ribeira Brava | 4,070.68 mi (6,551.13 km) |
| Mason City to Ribeira Grande | 3,478.42 mi (5,597.97 km) |
| Mason City to Rio de Mouro | 4,195.64 mi (6,752.22 km) |
| Mason City to Rio Maior | 4,191.84 mi (6,746.12 km) |
| Mason City to Rio Tinto | 4,138.39 mi (6,660.10 km) |
| Mason City to Sabugal | 4,234.40 mi (6,814.61 km) |
| Mason City to Sacavem | 4,204.84 mi (6,767.03 km) |
| Mason City to Salvaterra de Magos | 4,210.67 mi (6,776.42 km) |
| Mason City to Santa Comba Dao | 4,187.22 mi (6,738.68 km) |
| Mason City to Santa Cruz | 4,082.70 mi (6,570.48 km) |
| Mason City to Santa Iria da Azoia | 4,203.61 mi (6,765.05 km) |
