| Ardea to Romeoville (Illinois) | 4,853.65 mi (7,811.20 km) |
| Ardea to Romulus (Michigan) | 4,635.57 mi (7,460.23 km) |
| Ardea to Ronkonkoma (New York) | 4,251.40 mi (6,841.97 km) |
| Ardea to Roosevelt (New York) | 4,276.31 mi (6,882.06 km) |
| Ardea to Rosamond (California) | 6,301.02 mi (10,140.51 km) |
| Ardea to Rosaryville (Maryland) | 4,492.89 mi (7,230.60 km) |
| Ardea to Roscoe (Illinois) | 4,855.64 mi (7,814.39 km) |
| Ardea to Rose Hill (Virginia) | 4,504.62 mi (7,249.48 km) |
| Ardea to Roseburg (Oregon) | 5,966.44 mi (9,602.05 km) |
| Ardea to Rosedale (California) | 6,302.60 mi (10,143.06 km) |
| Ardea to Rosedale (Maryland) | 4,457.01 mi (7,172.87 km) |
| Ardea to Roselle (Illinois) | 4,838.05 mi (7,786.08 km) |
| Ardea to Roselle (New Jersey) | 4,307.23 mi (6,931.81 km) |
| Ardea to Roselle Park (New Jersey) | 4,307.05 mi (6,931.53 km) |
| Ardea to Rosemead (California) | 6,342.07 mi (10,206.58 km) |
