| Riihimaki to Devnya | 1,215.86 mi (1,956.74 km) |
| Riihimaki to Dimitrovgrad | 1,291.37 mi (2,078.25 km) |
| Riihimaki to Dobrich | 1,192.88 mi (1,919.76 km) |
| Riihimaki to Dospat | 1,318.77 mi (2,122.36 km) |
| Riihimaki to Dupnitsa | 1,277.91 mi (2,056.59 km) |
| Riihimaki to Elhovo | 1,285.05 mi (2,068.09 km) |
| Riihimaki to Etropole | 1,237.18 mi (1,991.05 km) |
| Riihimaki to Gabrovo | 1,234.69 mi (1,987.04 km) |
| Riihimaki to Gorna Oryahovitsa | 1,216.66 mi (1,958.03 km) |
| Riihimaki to Gotse Delchev | 1,325.00 mi (2,132.38 km) |
| Riihimaki to Harmanli | 1,299.83 mi (2,091.87 km) |
| Riihimaki to Haskovo | 1,299.39 mi (2,091.17 km) |
| Riihimaki to Ihtiman | 1,264.75 mi (2,035.42 km) |
| Riihimaki to Isperih | 1,178.84 mi (1,897.16 km) |
| Riihimaki to Kardzhali | 1,318.77 mi (2,122.36 km) |
