| Flers to Popovo | 1,330.49 mi (2,141.22 km) |
| Flers to Provadia | 1,389.88 mi (2,236.79 km) |
| Flers to Radnevo | 1,349.90 mi (2,172.45 km) |
| Flers to Radomir | 1,208.03 mi (1,944.14 km) |
| Flers to Rakitovo | 1,277.73 mi (2,056.31 km) |
| Flers to Rakovski | 1,306.83 mi (2,103.14 km) |
| Flers to Razgrad | 1,337.91 mi (2,153.15 km) |
| Flers to Razlog | 1,253.79 mi (2,017.79 km) |
| Flers to Ruse | 1,303.98 mi (2,098.55 km) |
| Flers to Samokov | 1,242.16 mi (1,999.06 km) |
| Flers to Sandanski | 1,256.81 mi (2,022.64 km) |
| Flers to Sevlievo | 1,289.76 mi (2,075.66 km) |
| Flers to Shumen | 1,364.21 mi (2,195.48 km) |
| Flers to Silistra | 1,355.10 mi (2,180.83 km) |
| Flers to Sliven | 1,355.55 mi (2,181.54 km) |
