| Gap to Popovo | 1,003.40 mi (1,614.81 km) |
| Gap to Provadia | 1,064.84 mi (1,713.70 km) |
| Gap to Radnevo | 1,005.83 mi (1,618.72 km) |
| Gap to Radomir | 854.54 mi (1,375.25 km) |
| Gap to Rakitovo | 921.10 mi (1,482.37 km) |
| Gap to Rakovski | 958.44 mi (1,542.46 km) |
| Gap to Razgrad | 1,014.82 mi (1,633.20 km) |
| Gap to Razlog | 892.96 mi (1,437.08 km) |
| Gap to Ruse | 983.52 mi (1,582.83 km) |
| Gap to Samokov | 888.22 mi (1,429.45 km) |
| Gap to Sandanski | 890.85 mi (1,433.68 km) |
| Gap to Sevlievo | 953.06 mi (1,533.80 km) |
| Gap to Shumen | 1,038.78 mi (1,671.75 km) |
| Gap to Silistra | 1,044.26 mi (1,680.58 km) |
| Gap to Sliven | 1,018.68 mi (1,639.41 km) |
