| Keystone to Prokuplje | 5,560.18 mi (8,948.24 km) |
| Keystone to Raca | 5,499.88 mi (8,851.20 km) |
| Keystone to Raska | 5,515.67 mi (8,876.61 km) |
| Keystone to Razanj | 5,543.72 mi (8,921.76 km) |
| Keystone to Rekovac | 5,518.82 mi (8,881.68 km) |
| Keystone to Ruma | 5,424.75 mi (8,730.29 km) |
| Keystone to Sabac | 5,426.80 mi (8,733.59 km) |
| Keystone to Secanj | 5,452.65 mi (8,775.19 km) |
| Keystone to Senta | 5,404.97 mi (8,698.46 km) |
| Keystone to Sid | 5,395.14 mi (8,682.65 km) |
| Keystone to Sjenica | 5,489.52 mi (8,834.54 km) |
| Keystone to Smederevo | 5,482.99 mi (8,824.03 km) |
| Keystone to Smederevska Palanka | 5,494.34 mi (8,842.29 km) |
| Keystone to Sokobanja | 5,558.02 mi (8,944.77 km) |
| Keystone to Sombor | 5,368.53 mi (8,639.82 km) |
