| Duncan to Rosolini | 5,887.56 mi (9,475.11 km) |
| Duncan to Rossano | 5,832.68 mi (9,386.79 km) |
| Duncan to Rottofreno | 5,313.30 mi (8,550.94 km) |
| Duncan to Rovato | 5,310.08 mi (8,545.75 km) |
| Duncan to Roverbella | 5,352.35 mi (8,613.78 km) |
| Duncan to Rovereto | 5,337.68 mi (8,590.17 km) |
| Duncan to Rovigo | 5,399.95 mi (8,690.37 km) |
| Duncan to Rozzano | 5,284.37 mi (8,504.38 km) |
| Duncan to Rubano | 5,384.69 mi (8,665.82 km) |
| Duncan to Rubiera | 5,378.64 mi (8,656.08 km) |
| Duncan to Ruffano | 5,877.72 mi (9,459.28 km) |
| Duncan to Russi | 5,439.03 mi (8,753.27 km) |
| Duncan to Rutigliano | 5,781.07 mi (9,303.74 km) |
| Duncan to Ruvo di Puglia | 5,756.37 mi (9,263.99 km) |
| Duncan to Sabaudia | 5,610.38 mi (9,029.03 km) |
