| Portimao to Devnya | 1,935.91 mi (3,115.55 km) |
| Portimao to Dimitrovgrad | 1,836.40 mi (2,955.41 km) |
| Portimao to Dobrich | 1,949.45 mi (3,137.34 km) |
| Portimao to Dospat | 1,763.01 mi (2,837.29 km) |
| Portimao to Dupnitsa | 1,709.37 mi (2,750.97 km) |
| Portimao to Elhovo | 1,885.81 mi (3,034.91 km) |
| Portimao to Etropole | 1,755.33 mi (2,824.93 km) |
| Portimao to Gabrovo | 1,822.90 mi (2,933.68 km) |
| Portimao to Gorna Oryahovitsa | 1,841.79 mi (2,964.08 km) |
| Portimao to Gotse Delchev | 1,740.68 mi (2,801.36 km) |
| Portimao to Harmanli | 1,851.95 mi (2,980.43 km) |
| Portimao to Haskovo | 1,834.82 mi (2,952.86 km) |
| Portimao to Ihtiman | 1,745.26 mi (2,808.73 km) |
| Portimao to Isperih | 1,899.66 mi (3,057.21 km) |
| Portimao to Kardzhali | 1,824.95 mi (2,936.97 km) |
