| Letchworth to Prokuplje | 1,175.50 mi (1,891.79 km) |
| Letchworth to Raca | 1,109.63 mi (1,785.78 km) |
| Letchworth to Raska | 1,134.99 mi (1,826.58 km) |
| Letchworth to Razanj | 1,155.67 mi (1,859.88 km) |
| Letchworth to Rekovac | 1,130.76 mi (1,819.79 km) |
| Letchworth to Ruma | 1,032.80 mi (1,662.12 km) |
| Letchworth to Sabac | 1,037.01 mi (1,668.91 km) |
| Letchworth to Secanj | 1,056.49 mi (1,700.26 km) |
| Letchworth to Senta | 1,007.72 mi (1,621.77 km) |
| Letchworth to Sid | 1,004.19 mi (1,616.09 km) |
| Letchworth to Sjenica | 1,112.17 mi (1,789.87 km) |
| Letchworth to Smederevo | 1,090.10 mi (1,754.35 km) |
| Letchworth to Smederevska Palanka | 1,103.26 mi (1,775.53 km) |
| Letchworth to Sokobanja | 1,168.96 mi (1,881.26 km) |
| Letchworth to Sombor | 973.69 mi (1,567.00 km) |
