| Sintra to Rancho Cordova (California) | 5,567.08 mi (8,959.35 km) |
| Sintra to Rancho Cucamonga (California) | 5,621.37 mi (9,046.71 km) |
| Sintra to Rancho Mirage (California) | 5,588.71 mi (8,994.16 km) |
| Sintra to Rancho Palos Verdes (California) | 5,672.43 mi (9,128.90 km) |
| Sintra to Rancho San Diego (California) | 5,655.67 mi (9,101.92 km) |
| Sintra to Rancho Santa Margarita (California) | 5,645.33 mi (9,085.27 km) |
| Sintra to Randallstown (Maryland) | 3,526.04 mi (5,674.62 km) |
| Sintra to Rantoul (Illinois) | 4,048.52 mi (6,515.47 km) |
| Sintra to Rapid City (South Dakota) | 4,596.17 mi (7,396.83 km) |
| Sintra to Ravenna (Ohio) | 3,694.90 mi (5,946.37 km) |
| Sintra to Raymondville (Texas) | 5,016.49 mi (8,073.25 km) |
| Sintra to Raymore (Missouri) | 4,393.41 mi (7,070.50 km) |
| Sintra to Raytown (Missouri) | 4,387.09 mi (7,060.34 km) |
| Sintra to Reading (Ohio) | 3,903.32 mi (6,281.79 km) |
| Sintra to Reading (Pennsylvania) | 3,458.16 mi (5,565.37 km) |
