| Altadena to Romeoville (Illinois) | 1,706.05 mi (2,745.63 km) |
| Altadena to Romulus (Michigan) | 1,952.37 mi (3,142.03 km) |
| Altadena to Ronkonkoma (New York) | 2,481.48 mi (3,993.56 km) |
| Altadena to Roosevelt (New York) | 2,458.14 mi (3,955.99 km) |
| Altadena to Rosamond (California) | 46.73 mi (75.21 km) |
| Altadena to Rosaryville (Maryland) | 2,296.98 mi (3,696.62 km) |
| Altadena to Roscoe (Illinois) | 1,668.50 mi (2,685.19 km) |
| Altadena to Rose Hill (Virginia) | 2,281.73 mi (3,672.09 km) |
| Altadena to Roseburg (Oregon) | 684.06 mi (1,100.88 km) |
| Altadena to Rosedale (California) | 102.58 mi (165.08 km) |
| Altadena to Rosedale (Maryland) | 2,310.76 mi (3,718.80 km) |
| Altadena to Roselle (Illinois) | 1,710.12 mi (2,752.16 km) |
| Altadena to Roselle (New Jersey) | 2,422.91 mi (3,899.30 km) |
| Altadena to Roselle Park (New Jersey) | 2,422.51 mi (3,898.65 km) |
| Altadena to Rosemead (California) | 9.06 mi (14.58 km) |
