| Trentham to Devnya | 1,514.79 mi (2,437.82 km) |
| Trentham to Dimitrovgrad | 1,486.53 mi (2,392.34 km) |
| Trentham to Dobrich | 1,511.21 mi (2,432.05 km) |
| Trentham to Dospat | 1,448.79 mi (2,331.60 km) |
| Trentham to Dupnitsa | 1,380.29 mi (2,221.36 km) |
| Trentham to Elhovo | 1,519.53 mi (2,445.45 km) |
| Trentham to Etropole | 1,389.19 mi (2,235.69 km) |
| Trentham to Gabrovo | 1,440.28 mi (2,317.90 km) |
| Trentham to Gorna Oryahovitsa | 1,443.46 mi (2,323.02 km) |
| Trentham to Gotse Delchev | 1,435.96 mi (2,310.95 km) |
| Trentham to Harmanli | 1,503.51 mi (2,419.67 km) |
| Trentham to Haskovo | 1,490.43 mi (2,398.61 km) |
| Trentham to Ihtiman | 1,399.54 mi (2,252.35 km) |
| Trentham to Isperih | 1,464.68 mi (2,357.18 km) |
| Trentham to Kardzhali | 1,495.34 mi (2,406.52 km) |
