| Port Orange to Popovo | 5,640.09 mi (9,076.84 km) |
| Port Orange to Provadia | 5,697.04 mi (9,168.50 km) |
| Port Orange to Radnevo | 5,666.21 mi (9,118.88 km) |
| Port Orange to Radomir | 5,527.46 mi (8,895.60 km) |
| Port Orange to Rakitovo | 5,597.30 mi (9,007.98 km) |
| Port Orange to Rakovski | 5,624.75 mi (9,052.17 km) |
| Port Orange to Razgrad | 5,645.25 mi (9,085.15 km) |
| Port Orange to Razlog | 5,573.75 mi (8,970.09 km) |
| Port Orange to Ruse | 5,610.77 mi (9,029.67 km) |
| Port Orange to Samokov | 5,561.51 mi (8,950.39 km) |
| Port Orange to Sandanski | 5,576.80 mi (8,974.99 km) |
| Port Orange to Sevlievo | 5,604.26 mi (9,019.19 km) |
| Port Orange to Shumen | 5,672.18 mi (9,128.50 km) |
| Port Orange to Silistra | 5,654.51 mi (9,100.06 km) |
| Port Orange to Sliven | 5,669.14 mi (9,123.60 km) |
