| Idanha-a-Nova to Reidsville (North Carolina) | 3,833.61 mi (6,169.60 km) |
| Idanha-a-Nova to Reisterstown (Maryland) | 3,599.30 mi (5,792.51 km) |
| Idanha-a-Nova to Rendon (Texas) | 4,821.87 mi (7,760.05 km) |
| Idanha-a-Nova to Reno (Nevada) | 5,497.21 mi (8,846.90 km) |
| Idanha-a-Nova to Renton (Washington) | 5,200.95 mi (8,370.11 km) |
| Idanha-a-Nova to Republic (Missouri) | 4,468.12 mi (7,190.75 km) |
| Idanha-a-Nova to Reston (Virginia) | 3,639.75 mi (5,857.61 km) |
| Idanha-a-Nova to Revere (Massachusetts) | 3,241.51 mi (5,216.71 km) |
| Idanha-a-Nova to Rexburg (Idaho) | 4,990.54 mi (8,031.50 km) |
| Idanha-a-Nova to Reynoldsburg (Ohio) | 3,871.59 mi (6,230.73 km) |
| Idanha-a-Nova to Rialto (California) | 5,657.89 mi (9,105.50 km) |
| Idanha-a-Nova to Richardson (Texas) | 4,781.29 mi (7,694.75 km) |
| Idanha-a-Nova to Richfield (Minnesota) | 4,190.28 mi (6,743.60 km) |
| Idanha-a-Nova to Richfield (Wisconsin) | 4,021.53 mi (6,472.03 km) |
| Idanha-a-Nova to Richland (Washington) | 5,157.92 mi (8,300.88 km) |
