| Sintra to Rosemont (California) | 5,572.36 mi (8,967.85 km) |
| Sintra to Rosemount (Minnesota) | 4,136.19 mi (6,656.55 km) |
| Sintra to Rosenberg (Texas) | 4,797.98 mi (7,721.61 km) |
| Sintra to Roseville (California) | 5,560.49 mi (8,948.74 km) |
| Sintra to Roseville (Michigan) | 3,739.34 mi (6,017.89 km) |
| Sintra to Roseville (Minnesota) | 4,131.82 mi (6,649.52 km) |
| Sintra to Rossmoor (California) | 5,658.79 mi (9,106.94 km) |
| Sintra to Rossville (Maryland) | 3,510.33 mi (5,649.33 km) |
| Sintra to Roswell (Georgia) | 4,061.46 mi (6,536.29 km) |
| Sintra to Roswell (New Mexico) | 5,068.67 mi (8,157.24 km) |
| Sintra to Round Lake (Illinois) | 3,984.80 mi (6,412.92 km) |
| Sintra to Round Lake Beach (Illinois) | 3,982.61 mi (6,409.39 km) |
| Sintra to Round Rock (Texas) | 4,851.47 mi (7,807.68 km) |
| Sintra to Rowland Heights (California) | 5,642.28 mi (9,080.38 km) |
| Sintra to Rowlett (Texas) | 4,705.63 mi (7,572.97 km) |
