| Holyhead to Srbobran | 1,213.65 mi (1,953.18 km) |
| Holyhead to Sremska Kamenica | 1,228.39 mi (1,976.91 km) |
| Holyhead to Sremska Mitrovica | 1,229.71 mi (1,979.02 km) |
| Holyhead to Sremski Karlovci | 1,232.94 mi (1,984.23 km) |
| Holyhead to Stara Pazova | 1,250.96 mi (2,013.22 km) |
| Holyhead to Subotica | 1,186.86 mi (1,910.06 km) |
| Holyhead to Surcin | 1,263.07 mi (2,032.72 km) |
| Holyhead to Surdulica | 1,427.15 mi (2,296.77 km) |
| Holyhead to Svilajnac | 1,323.40 mi (2,129.81 km) |
| Holyhead to Svrljig | 1,393.48 mi (2,242.58 km) |
| Holyhead to Temerin | 1,222.25 mi (1,967.03 km) |
| Holyhead to Titel | 1,247.24 mi (2,007.24 km) |
| Holyhead to Topola | 1,301.34 mi (2,094.31 km) |
| Holyhead to Trgoviste | 1,439.68 mi (2,316.95 km) |
| Holyhead to Trstenik | 1,341.04 mi (2,158.19 km) |
