| Ionia to Redon | 3,846.28 mi (6,189.98 km) |
| Ionia to Reims | 4,035.10 mi (6,493.86 km) |
| Ionia to Rennes | 3,847.57 mi (6,192.06 km) |
| Ionia to Revel | 4,163.94 mi (6,701.22 km) |
| Ionia to Reze | 3,882.66 mi (6,248.54 km) |
| Ionia to Riedisheim | 4,219.89 mi (6,791.26 km) |
| Ionia to Rillieux-la-Pape | 4,194.97 mi (6,751.16 km) |
| Ionia to Riom | 4,119.83 mi (6,630.23 km) |
| Ionia to Riorges | 4,152.03 mi (6,682.04 km) |
| Ionia to Ris-Orangis | 3,993.22 mi (6,426.47 km) |
| Ionia to Rive-de-Gier | 4,194.56 mi (6,750.49 km) |
| Ionia to Rivesaltes | 4,226.70 mi (6,802.22 km) |
| Ionia to Rixheim | 4,221.34 mi (6,793.59 km) |
| Ionia to Roanne | 4,153.40 mi (6,684.25 km) |
| Ionia to Roche-la-Moliere | 4,186.22 mi (6,737.07 km) |
