| Firminy to Devnya | 1,156.73 mi (1,861.57 km) |
| Firminy to Dimitrovgrad | 1,085.55 mi (1,747.03 km) |
| Firminy to Dobrich | 1,163.42 mi (1,872.34 km) |
| Firminy to Dospat | 1,026.02 mi (1,651.22 km) |
| Firminy to Dupnitsa | 960.75 mi (1,546.18 km) |
| Firminy to Elhovo | 1,129.69 mi (1,818.06 km) |
| Firminy to Etropole | 991.11 mi (1,595.04 km) |
| Firminy to Gabrovo | 1,055.07 mi (1,697.98 km) |
| Firminy to Gorna Oryahovitsa | 1,067.70 mi (1,718.30 km) |
| Firminy to Gotse Delchev | 1,007.30 mi (1,621.09 km) |
| Firminy to Harmanli | 1,102.77 mi (1,774.74 km) |
| Firminy to Haskovo | 1,086.66 mi (1,748.81 km) |
| Firminy to Ihtiman | 990.58 mi (1,594.19 km) |
| Firminy to Isperih | 1,112.40 mi (1,790.23 km) |
| Firminy to Kardzhali | 1,083.83 mi (1,744.25 km) |
