| Harpenden to Suhut | 1,743.21 mi (2,805.43 km) |
| Harpenden to Sulakyurt | 1,801.15 mi (2,898.67 km) |
| Harpenden to Sultanbeyli | 1,582.55 mi (2,546.87 km) |
| Harpenden to Sultandagi | 1,770.86 mi (2,849.92 km) |
| Harpenden to Sultanhani | 1,878.03 mi (3,022.39 km) |
| Harpenden to Sultanhisar | 1,678.61 mi (2,701.47 km) |
| Harpenden to Suluova | 1,853.84 mi (2,983.46 km) |
| Harpenden to Sumbas | 2,016.77 mi (3,245.69 km) |
| Harpenden to Sungurlu | 1,828.48 mi (2,942.66 km) |
| Harpenden to Surmene | 2,039.43 mi (3,282.15 km) |
| Harpenden to Suruc | 2,137.19 mi (3,439.47 km) |
| Harpenden to Susehri | 1,984.40 mi (3,193.59 km) |
| Harpenden to Susurluk | 1,584.24 mi (2,549.59 km) |
| Harpenden to Susuz | 2,173.55 mi (3,497.99 km) |
| Harpenden to Sutculer | 1,809.14 mi (2,911.52 km) |
