| Didcot to Smyrna (Delaware) | 3,541.31 mi (5,699.18 km) |
| Didcot to Smyrna (Georgia) | 4,158.82 mi (6,692.97 km) |
| Didcot to Smyrna (Tennessee) | 4,138.05 mi (6,659.55 km) |
| Didcot to Snellville (Georgia) | 4,138.22 mi (6,659.82 km) |
| Didcot to Snoqualmie (Washington) | 4,740.77 mi (7,629.53 km) |
| Didcot to Snyder (Texas) | 4,862.75 mi (7,825.83 km) |
| Didcot to Socastee (South Carolina) | 3,940.34 mi (6,341.37 km) |
| Didcot to Socorro (Texas) | 5,119.23 mi (8,238.61 km) |
| Didcot to Soddy-Daisy (Tennessee) | 4,118.01 mi (6,627.29 km) |
| Didcot to Solana Beach (California) | 5,428.07 mi (8,735.63 km) |
| Didcot to Soledad (California) | 5,360.57 mi (8,627.01 km) |
| Didcot to Solon (Ohio) | 3,683.34 mi (5,927.76 km) |
| Didcot to Somers Point (New Jersey) | 3,499.14 mi (5,631.32 km) |
| Didcot to Somerset (Kentucky) | 4,008.00 mi (6,450.25 km) |
| Didcot to Somerset (New Jersey) | 3,442.67 mi (5,540.45 km) |
