| Mason City to Redon | 4,164.43 mi (6,702.00 km) |
| Mason City to Reims | 4,333.99 mi (6,974.88 km) |
| Mason City to Rennes | 4,162.84 mi (6,699.44 km) |
| Mason City to Revel | 4,492.15 mi (7,229.42 km) |
| Mason City to Reze | 4,201.95 mi (6,762.39 km) |
| Mason City to Riedisheim | 4,518.80 mi (7,272.30 km) |
| Mason City to Rillieux-la-Pape | 4,507.52 mi (7,254.16 km) |
| Mason City to Riom | 4,435.75 mi (7,138.65 km) |
| Mason City to Riorges | 4,465.41 mi (7,186.38 km) |
| Mason City to Ris-Orangis | 4,298.19 mi (6,917.26 km) |
| Mason City to Rive-de-Gier | 4,508.94 mi (7,256.43 km) |
| Mason City to Rivesaltes | 4,555.87 mi (7,331.97 km) |
| Mason City to Rixheim | 4,520.16 mi (7,274.49 km) |
| Mason City to Roanne | 4,466.75 mi (7,188.54 km) |
| Mason City to Roche-la-Moliere | 4,501.61 mi (7,244.64 km) |
