| Harker Heights to Srbobran | 5,854.65 mi (9,422.15 km) |
| Harker Heights to Sremska Kamenica | 5,870.68 mi (9,447.95 km) |
| Harker Heights to Sremska Mitrovica | 5,873.41 mi (9,452.35 km) |
| Harker Heights to Sremski Karlovci | 5,875.09 mi (9,455.05 km) |
| Harker Heights to Stara Pazova | 5,893.47 mi (9,484.62 km) |
| Harker Heights to Subotica | 5,825.05 mi (9,374.52 km) |
| Harker Heights to Surcin | 5,906.04 mi (9,504.85 km) |
| Harker Heights to Surdulica | 6,072.65 mi (9,772.98 km) |
| Harker Heights to Svilajnac | 5,966.57 mi (9,602.27 km) |
| Harker Heights to Svrljig | 6,037.44 mi (9,716.31 km) |
| Harker Heights to Temerin | 5,863.55 mi (9,436.48 km) |
| Harker Heights to Titel | 5,888.46 mi (9,476.57 km) |
| Harker Heights to Topola | 5,945.39 mi (9,568.18 km) |
| Harker Heights to Trgoviste | 6,085.66 mi (9,793.93 km) |
| Harker Heights to Trstenik | 5,986.19 mi (9,633.84 km) |
