| Kirkintilloch to Popovo | 1,594.17 mi (2,565.56 km) |
| Kirkintilloch to Provadia | 1,645.86 mi (2,648.75 km) |
| Kirkintilloch to Radnevo | 1,634.33 mi (2,630.21 km) |
| Kirkintilloch to Radomir | 1,516.62 mi (2,440.76 km) |
| Kirkintilloch to Rakitovo | 1,584.76 mi (2,550.42 km) |
| Kirkintilloch to Rakovski | 1,600.46 mi (2,575.69 km) |
| Kirkintilloch to Razgrad | 1,595.77 mi (2,568.14 km) |
| Kirkintilloch to Razlog | 1,568.41 mi (2,524.11 km) |
| Kirkintilloch to Ruse | 1,561.56 mi (2,513.08 km) |
| Kirkintilloch to Samokov | 1,548.44 mi (2,491.98 km) |
| Kirkintilloch to Sandanski | 1,578.24 mi (2,539.93 km) |
| Kirkintilloch to Sevlievo | 1,569.40 mi (2,525.71 km) |
| Kirkintilloch to Shumen | 1,622.83 mi (2,611.69 km) |
| Kirkintilloch to Silistra | 1,595.78 mi (2,568.15 km) |
| Kirkintilloch to Sliven | 1,629.92 mi (2,623.10 km) |
