| Lisburn to Popovo | 1,635.33 mi (2,631.80 km) |
| Lisburn to Provadia | 1,689.29 mi (2,718.65 km) |
| Lisburn to Radnevo | 1,670.81 mi (2,688.91 km) |
| Lisburn to Radomir | 1,545.95 mi (2,487.97 km) |
| Lisburn to Rakitovo | 1,615.11 mi (2,599.27 km) |
| Lisburn to Rakovski | 1,634.36 mi (2,630.25 km) |
| Lisburn to Razgrad | 1,638.32 mi (2,636.62 km) |
| Lisburn to Razlog | 1,596.65 mi (2,569.56 km) |
| Lisburn to Ruse | 1,603.86 mi (2,581.16 km) |
| Lisburn to Samokov | 1,578.67 mi (2,540.62 km) |
| Lisburn to Sandanski | 1,604.77 mi (2,582.64 km) |
| Lisburn to Sevlievo | 1,606.49 mi (2,585.39 km) |
| Lisburn to Shumen | 1,665.44 mi (2,680.27 km) |
| Lisburn to Silistra | 1,642.32 mi (2,643.05 km) |
| Lisburn to Sliven | 1,668.82 mi (2,685.71 km) |
