| Mason City to Rury | 4,865.76 mi (7,830.68 km) |
| Mason City to Rybnik | 4,798.39 mi (7,722.27 km) |
| Mason City to Ryki | 4,828.70 mi (7,771.05 km) |
| Mason City to Rypin | 4,684.54 mi (7,539.04 km) |
| Mason City to Rzeszow | 4,909.62 mi (7,901.27 km) |
| Mason City to Sandomierz | 4,869.83 mi (7,837.24 km) |
| Mason City to Sanok | 4,940.32 mi (7,950.67 km) |
| Mason City to Sedziszow Malopolski | 4,898.67 mi (7,883.64 km) |
| Mason City to Sepolno Krajenskie | 4,608.25 mi (7,416.27 km) |
| Mason City to Sidlice | 4,599.38 mi (7,401.99 km) |
| Mason City to Siechnice | 4,708.60 mi (7,577.76 km) |
| Mason City to Siedlce | 4,812.71 mi (7,745.31 km) |
| Mason City to Siemianowice Slaskie | 4,803.13 mi (7,729.89 km) |
| Mason City to Siemiatycze | 4,817.28 mi (7,752.66 km) |
| Mason City to Sieradz | 4,732.60 mi (7,616.39 km) |
