| Didcot to Selargius | 989.13 mi (1,591.85 km) |
| Didcot to Selvazzano Dentro | 733.44 mi (1,180.36 km) |
| Didcot to Senago | 629.73 mi (1,013.45 km) |
| Didcot to Senigallia | 863.46 mi (1,389.60 km) |
| Didcot to Seravezza | 746.51 mi (1,201.40 km) |
| Didcot to Seregno | 628.76 mi (1,011.90 km) |
| Didcot to Seriate | 645.09 mi (1,038.18 km) |
| Didcot to Sermoneta | 965.80 mi (1,554.31 km) |
| Didcot to Serramanna | 972.94 mi (1,565.79 km) |
| Didcot to Serravalle Pistoiese | 771.52 mi (1,241.64 km) |
| Didcot to Sessa Aurunca | 1,014.03 mi (1,631.93 km) |
| Didcot to Sesto Calende | 605.39 mi (974.28 km) |
| Didcot to Sesto Fiorentino | 787.24 mi (1,266.94 km) |
| Didcot to Sesto San Giovanni | 635.59 mi (1,022.89 km) |
| Didcot to Sestri Levante | 705.00 mi (1,134.59 km) |
