| Walnut Creek to Selargius | 6,272.86 mi (10,095.18 km) |
| Walnut Creek to Selvazzano Dentro | 6,006.36 mi (9,666.31 km) |
| Walnut Creek to Senago | 5,920.30 mi (9,527.81 km) |
| Walnut Creek to Senigallia | 6,141.51 mi (9,883.81 km) |
| Walnut Creek to Seravezza | 6,040.45 mi (9,721.17 km) |
| Walnut Creek to Seregno | 5,918.52 mi (9,524.94 km) |
| Walnut Creek to Seriate | 5,931.41 mi (9,545.68 km) |
| Walnut Creek to Sermoneta | 6,259.03 mi (10,072.94 km) |
| Walnut Creek to Serramanna | 6,255.87 mi (10,067.85 km) |
| Walnut Creek to Serravalle Pistoiese | 6,063.43 mi (9,758.15 km) |
| Walnut Creek to Sessa Aurunca | 6,304.50 mi (10,146.11 km) |
| Walnut Creek to Sesto Calende | 5,897.56 mi (9,491.20 km) |
| Walnut Creek to Sesto Fiorentino | 6,077.73 mi (9,781.16 km) |
| Walnut Creek to Sesto San Giovanni | 5,925.96 mi (9,536.91 km) |
| Walnut Creek to Sestri Levante | 6,000.67 mi (9,657.14 km) |
