| Falkirk to Popovo | 1,582.23 mi (2,546.36 km) |
| Falkirk to Provadia | 1,633.73 mi (2,629.24 km) |
| Falkirk to Radnevo | 1,622.77 mi (2,611.60 km) |
| Falkirk to Radomir | 1,505.70 mi (2,423.19 km) |
| Falkirk to Rakitovo | 1,573.73 mi (2,532.67 km) |
| Falkirk to Rakovski | 1,589.13 mi (2,557.45 km) |
| Falkirk to Razgrad | 1,583.73 mi (2,548.76 km) |
| Falkirk to Razlog | 1,557.57 mi (2,506.66 km) |
| Falkirk to Ruse | 1,549.54 mi (2,493.75 km) |
| Falkirk to Samokov | 1,537.44 mi (2,474.27 km) |
| Falkirk to Sandanski | 1,567.55 mi (2,522.72 km) |
| Falkirk to Sevlievo | 1,557.81 mi (2,507.05 km) |
| Falkirk to Shumen | 1,610.78 mi (2,592.30 km) |
| Falkirk to Silistra | 1,583.43 mi (2,548.28 km) |
| Falkirk to Sliven | 1,618.16 mi (2,604.18 km) |
