| Fort Collins to Rosolini | 5,880.45 mi (9,463.66 km) |
| Fort Collins to Rossano | 5,796.82 mi (9,329.08 km) |
| Fort Collins to Rottofreno | 5,272.90 mi (8,485.91 km) |
| Fort Collins to Rovato | 5,263.64 mi (8,471.00 km) |
| Fort Collins to Roverbella | 5,304.63 mi (8,536.97 km) |
| Fort Collins to Rovereto | 5,283.91 mi (8,503.63 km) |
| Fort Collins to Rovigo | 5,348.77 mi (8,608.01 km) |
| Fort Collins to Rozzano | 5,243.29 mi (8,438.26 km) |
| Fort Collins to Rubano | 5,330.90 mi (8,579.25 km) |
| Fort Collins to Rubiera | 5,335.55 mi (8,586.73 km) |
| Fort Collins to Ruffano | 5,830.11 mi (9,382.65 km) |
| Fort Collins to Russi | 5,392.00 mi (8,677.59 km) |
| Fort Collins to Rutigliano | 5,734.19 mi (9,228.29 km) |
| Fort Collins to Ruvo di Puglia | 5,710.43 mi (9,190.05 km) |
| Fort Collins to Sabaudia | 5,581.24 mi (8,982.14 km) |
