| Seinajoki to Devnya | 1,365.82 mi (2,198.07 km) |
| Seinajoki to Dimitrovgrad | 1,437.50 mi (2,313.44 km) |
| Seinajoki to Dobrich | 1,343.34 mi (2,161.90 km) |
| Seinajoki to Dospat | 1,461.75 mi (2,352.46 km) |
| Seinajoki to Dupnitsa | 1,418.30 mi (2,282.54 km) |
| Seinajoki to Elhovo | 1,433.07 mi (2,306.31 km) |
| Seinajoki to Etropole | 1,379.79 mi (2,220.55 km) |
| Seinajoki to Gabrovo | 1,380.36 mi (2,221.47 km) |
| Seinajoki to Gorna Oryahovitsa | 1,363.14 mi (2,193.76 km) |
| Seinajoki to Gotse Delchev | 1,466.96 mi (2,360.84 km) |
| Seinajoki to Harmanli | 1,446.55 mi (2,328.00 km) |
| Seinajoki to Haskovo | 1,445.45 mi (2,326.22 km) |
| Seinajoki to Ihtiman | 1,406.90 mi (2,264.19 km) |
| Seinajoki to Isperih | 1,327.63 mi (2,136.62 km) |
| Seinajoki to Kardzhali | 1,464.39 mi (2,356.70 km) |
