| Didcot to Rosemont (California) | 5,239.71 mi (8,432.50 km) |
| Didcot to Rosemount (Minnesota) | 3,971.00 mi (6,390.71 km) |
| Didcot to Rosenberg (Texas) | 4,831.02 mi (7,774.78 km) |
| Didcot to Roseville (California) | 5,225.85 mi (8,410.19 km) |
| Didcot to Roseville (Michigan) | 3,692.17 mi (5,941.98 km) |
| Didcot to Roseville (Minnesota) | 3,961.63 mi (6,375.63 km) |
| Didcot to Rossmoor (California) | 5,409.83 mi (8,706.28 km) |
| Didcot to Rossville (Maryland) | 3,574.03 mi (5,751.84 km) |
| Didcot to Roswell (Georgia) | 4,143.53 mi (6,668.37 km) |
| Didcot to Roswell (New Mexico) | 4,962.62 mi (7,986.57 km) |
| Didcot to Round Lake (Illinois) | 3,898.61 mi (6,274.20 km) |
| Didcot to Round Lake Beach (Illinois) | 3,896.02 mi (6,270.04 km) |
| Didcot to Round Rock (Texas) | 4,852.37 mi (7,809.14 km) |
| Didcot to Rowland Heights (California) | 5,393.27 mi (8,679.63 km) |
| Didcot to Rowlett (Texas) | 4,685.28 mi (7,540.23 km) |
