| Didcot to San Luis Obispo (California) | 5,407.58 mi (8,702.66 km) |
| Didcot to San Marcos (California) | 5,417.34 mi (8,718.36 km) |
| Didcot to San Marcos (Texas) | 4,897.13 mi (7,881.17 km) |
| Didcot to San Marino (California) | 5,391.89 mi (8,677.41 km) |
| Didcot to San Mateo (California) | 5,325.79 mi (8,571.04 km) |
| Didcot to San Pablo (California) | 5,302.93 mi (8,534.24 km) |
| Didcot to San Rafael (California) | 5,306.67 mi (8,540.26 km) |
| Didcot to San Ramon (California) | 5,302.39 mi (8,533.38 km) |
| Didcot to San Tan Valley (Arizona) | 5,224.70 mi (8,408.35 km) |
| Didcot to Sand Springs (Oklahoma) | 4,504.92 mi (7,249.96 km) |
| Didcot to Sandusky (Ohio) | 3,730.43 mi (6,003.55 km) |
| Didcot to Sandy (Oregon) | 4,873.40 mi (7,842.98 km) |
| Didcot to Sandy (Utah) | 4,829.50 mi (7,772.33 km) |
| Didcot to Sandy Springs (Georgia) | 4,149.28 mi (6,677.62 km) |
| Didcot to Sanford (Florida) | 4,274.06 mi (6,878.43 km) |
