| Porvoo to Devnya | 1,189.52 mi (1,914.35 km) |
| Porvoo to Dimitrovgrad | 1,267.48 mi (2,039.81 km) |
| Porvoo to Dobrich | 1,166.18 mi (1,876.79 km) |
| Porvoo to Dospat | 1,296.66 mi (2,086.78 km) |
| Porvoo to Dupnitsa | 1,257.20 mi (2,023.27 km) |
| Porvoo to Elhovo | 1,259.99 mi (2,027.75 km) |
| Porvoo to Etropole | 1,215.36 mi (1,955.93 km) |
| Porvoo to Gabrovo | 1,211.13 mi (1,949.12 km) |
| Porvoo to Gorna Oryahovitsa | 1,192.63 mi (1,919.35 km) |
| Porvoo to Gotse Delchev | 1,303.44 mi (2,097.68 km) |
| Porvoo to Harmanli | 1,275.58 mi (2,052.84 km) |
| Porvoo to Haskovo | 1,275.54 mi (2,052.79 km) |
| Porvoo to Ihtiman | 1,243.14 mi (2,000.64 km) |
| Porvoo to Isperih | 1,153.34 mi (1,856.13 km) |
| Porvoo to Kardzhali | 1,295.17 mi (2,084.38 km) |
