| Oeiras to Popovo | 1,866.61 mi (3,004.02 km) |
| Oeiras to Provadia | 1,927.48 mi (3,101.99 km) |
| Oeiras to Radnevo | 1,855.58 mi (2,986.27 km) |
| Oeiras to Radomir | 1,702.72 mi (2,740.27 km) |
| Oeiras to Rakitovo | 1,762.57 mi (2,836.58 km) |
| Oeiras to Rakovski | 1,806.29 mi (2,906.94 km) |
| Oeiras to Razgrad | 1,880.32 mi (3,026.08 km) |
| Oeiras to Razlog | 1,731.39 mi (2,786.41 km) |
| Oeiras to Ruse | 1,851.62 mi (2,979.89 km) |
| Oeiras to Samokov | 1,734.17 mi (2,790.88 km) |
| Oeiras to Sandanski | 1,723.41 mi (2,773.56 km) |
| Oeiras to Sevlievo | 1,811.14 mi (2,914.74 km) |
| Oeiras to Shumen | 1,901.97 mi (3,060.93 km) |
| Oeiras to Silistra | 1,916.09 mi (3,083.65 km) |
| Oeiras to Sliven | 1,874.08 mi (3,016.04 km) |
