| Duluth to Redon | 3,969.12 mi (6,387.69 km) |
| Duluth to Reims | 4,127.01 mi (6,641.79 km) |
| Duluth to Rennes | 3,965.74 mi (6,382.24 km) |
| Duluth to Revel | 4,302.52 mi (6,924.24 km) |
| Duluth to Reze | 4,007.26 mi (6,449.06 km) |
| Duluth to Riedisheim | 4,311.34 mi (6,938.44 km) |
| Duluth to Rillieux-la-Pape | 4,307.79 mi (6,932.71 km) |
| Duluth to Riom | 4,238.25 mi (6,820.81 km) |
| Duluth to Riorges | 4,266.28 mi (6,865.92 km) |
| Duluth to Ris-Orangis | 4,094.63 mi (6,589.68 km) |
| Duluth to Rive-de-Gier | 4,310.29 mi (6,936.75 km) |
| Duluth to Rivesaltes | 4,366.73 mi (7,027.57 km) |
| Duluth to Rixheim | 4,312.66 mi (6,940.55 km) |
| Duluth to Roanne | 4,267.60 mi (6,868.04 km) |
| Duluth to Roche-la-Moliere | 4,303.61 mi (6,925.98 km) |
