| Leiden to Popovo | 1,172.43 mi (1,886.85 km) |
| Leiden to Provadia | 1,226.80 mi (1,974.35 km) |
| Leiden to Radnevo | 1,207.75 mi (1,943.69 km) |
| Leiden to Radomir | 1,084.45 mi (1,745.26 km) |
| Leiden to Rakitovo | 1,153.30 mi (1,856.05 km) |
| Leiden to Rakovski | 1,171.63 mi (1,885.55 km) |
| Leiden to Razgrad | 1,175.67 mi (1,892.06 km) |
| Leiden to Razlog | 1,135.63 mi (1,827.63 km) |
| Leiden to Ruse | 1,141.18 mi (1,836.56 km) |
| Leiden to Samokov | 1,116.87 mi (1,797.43 km) |
| Leiden to Sandanski | 1,144.56 mi (1,841.99 km) |
| Leiden to Sevlievo | 1,143.39 mi (1,840.10 km) |
| Leiden to Shumen | 1,202.79 mi (1,935.70 km) |
| Leiden to Silistra | 1,180.88 mi (1,900.44 km) |
| Leiden to Sliven | 1,205.72 mi (1,940.42 km) |
