| Duluth to Rivalta di Torino | 4,439.60 mi (7,144.84 km) |
| Duluth to Rivarolo Canavese | 4,433.26 mi (7,134.64 km) |
| Duluth to Rivoli | 4,437.94 mi (7,142.17 km) |
| Duluth to Rocca di Papa | 4,784.23 mi (7,699.48 km) |
| Duluth to Rocca Priora | 4,785.25 mi (7,701.11 km) |
| Duluth to Roccapiemonte | 4,905.70 mi (7,894.96 km) |
| Duluth to Roccastrada | 4,667.69 mi (7,511.92 km) |
| Duluth to Romano di Lombardia | 4,498.08 mi (7,238.95 km) |
| Duluth to Rome | 4,769.54 mi (7,675.83 km) |
| Duluth to Roncade | 4,585.90 mi (7,380.29 km) |
| Duluth to Ronchi dei Legionari | 4,614.95 mi (7,427.04 km) |
| Duluth to Ronciglione | 4,740.51 mi (7,629.11 km) |
| Duluth to Rosa | 4,560.15 mi (7,338.85 km) |
| Duluth to Rosarno | 5,067.09 mi (8,154.69 km) |
| Duluth to Rosignano Marittimo | 4,623.51 mi (7,440.82 km) |
