| Glencullen to Popovo | 1,622.15 mi (2,610.59 km) |
| Glencullen to Provadia | 1,677.65 mi (2,699.92 km) |
| Glencullen to Radnevo | 1,653.98 mi (2,661.82 km) |
| Glencullen to Radomir | 1,524.32 mi (2,453.16 km) |
| Glencullen to Rakitovo | 1,593.96 mi (2,565.24 km) |
| Glencullen to Rakovski | 1,615.74 mi (2,600.28 km) |
| Glencullen to Razgrad | 1,626.19 mi (2,617.10 km) |
| Glencullen to Razlog | 1,574.04 mi (2,533.17 km) |
| Glencullen to Ruse | 1,591.66 mi (2,561.54 km) |
| Glencullen to Samokov | 1,557.56 mi (2,506.64 km) |
| Glencullen to Sandanski | 1,580.90 mi (2,544.21 km) |
| Glencullen to Sevlievo | 1,590.34 mi (2,559.41 km) |
| Glencullen to Shumen | 1,653.26 mi (2,660.66 km) |
| Glencullen to Silistra | 1,633.24 mi (2,628.45 km) |
| Glencullen to Sliven | 1,653.82 mi (2,661.56 km) |
