| Killarney to Popovo | 1,746.34 mi (2,810.47 km) |
| Killarney to Provadia | 1,803.33 mi (2,902.18 km) |
| Killarney to Radnevo | 1,773.93 mi (2,854.87 km) |
| Killarney to Radomir | 1,639.06 mi (2,637.81 km) |
| Killarney to Rakitovo | 1,708.98 mi (2,750.33 km) |
| Killarney to Rakovski | 1,733.74 mi (2,790.18 km) |
| Killarney to Razgrad | 1,751.51 mi (2,818.79 km) |
| Killarney to Razlog | 1,687.31 mi (2,715.46 km) |
| Killarney to Ruse | 1,717.05 mi (2,763.32 km) |
| Killarney to Samokov | 1,672.78 mi (2,692.08 km) |
| Killarney to Sandanski | 1,692.52 mi (2,723.85 km) |
| Killarney to Sevlievo | 1,711.33 mi (2,754.13 km) |
| Killarney to Shumen | 1,778.43 mi (2,862.11 km) |
| Killarney to Silistra | 1,761.76 mi (2,835.28 km) |
| Killarney to Sliven | 1,775.87 mi (2,857.98 km) |
