| Didcot to River Ridge (Louisiana) | 4,585.06 mi (7,378.93 km) |
| Didcot to Riverbank (California) | 5,274.54 mi (8,488.55 km) |
| Didcot to Riverdale (Georgia) | 4,169.03 mi (6,709.41 km) |
| Didcot to Riverdale (Illinois) | 3,913.02 mi (6,297.41 km) |
| Didcot to Riverside (California) | 5,379.00 mi (8,656.66 km) |
| Didcot to Riverside (Ohio) | 3,862.18 mi (6,215.58 km) |
| Didcot to Riverton (Utah) | 4,836.07 mi (7,782.90 km) |
| Didcot to Riverton (Wyoming) | 4,585.33 mi (7,379.37 km) |
| Didcot to Riverview (Florida) | 4,365.47 mi (7,025.55 km) |
| Didcot to Riverview (Michigan) | 3,717.17 mi (5,982.21 km) |
| Didcot to Riviera Beach (Florida) | 4,323.77 mi (6,958.44 km) |
| Didcot to Riviera Beach (Maryland) | 3,584.71 mi (5,769.04 km) |
| Didcot to Roanoke (Virginia) | 3,810.63 mi (6,132.61 km) |
| Didcot to Roanoke Rapids (North Carolina) | 3,754.38 mi (6,042.10 km) |
| Didcot to Robbinsdale (Minnesota) | 3,967.57 mi (6,385.18 km) |
