| Morriston to Devnya | 1,568.65 mi (2,524.49 km) |
| Morriston to Dimitrovgrad | 1,531.60 mi (2,464.87 km) |
| Morriston to Dobrich | 1,566.95 mi (2,521.76 km) |
| Morriston to Dospat | 1,488.81 mi (2,396.01 km) |
| Morriston to Dupnitsa | 1,420.23 mi (2,285.64 km) |
| Morriston to Elhovo | 1,567.22 mi (2,522.20 km) |
| Morriston to Etropole | 1,433.75 mi (2,307.40 km) |
| Morriston to Gabrovo | 1,488.04 mi (2,394.77 km) |
| Morriston to Gorna Oryahovitsa | 1,493.13 mi (2,402.96 km) |
| Morriston to Gotse Delchev | 1,474.55 mi (2,373.06 km) |
| Morriston to Harmanli | 1,548.81 mi (2,492.56 km) |
| Morriston to Haskovo | 1,534.95 mi (2,470.27 km) |
| Morriston to Ihtiman | 1,441.97 mi (2,320.63 km) |
| Morriston to Isperih | 1,519.07 mi (2,444.71 km) |
| Morriston to Kardzhali | 1,538.28 mi (2,475.63 km) |
