| Duncan to Rochefort | 4,853.35 mi (7,810.71 km) |
| Duncan to Rodez | 5,057.56 mi (8,139.35 km) |
| Duncan to Rognac | 5,200.89 mi (8,370.03 km) |
| Duncan to Roissy-en-Brie | 4,899.74 mi (7,885.37 km) |
| Duncan to Romainville | 4,887.96 mi (7,866.41 km) |
| Duncan to Romans-sur-Isere | 5,133.65 mi (8,261.82 km) |
| Duncan to Rombas | 5,015.09 mi (8,071.01 km) |
| Duncan to Romilly-sur-Seine | 4,951.50 mi (7,968.67 km) |
| Duncan to Ronchin | 4,852.08 mi (7,808.66 km) |
| Duncan to Roncq | 4,848.04 mi (7,802.16 km) |
| Duncan to Roquebrune-sur-Argens | 5,260.80 mi (8,466.44 km) |
| Duncan to Roquevaire | 5,221.73 mi (8,403.57 km) |
| Duncan to Rosny-sous-Bois | 4,890.46 mi (7,870.43 km) |
| Duncan to Roubaix | 4,852.59 mi (7,809.49 km) |
| Duncan to Rouen | 4,815.96 mi (7,750.54 km) |
