| Mountain Ash to Popovo | 1,484.00 mi (2,388.27 km) |
| Mountain Ash to Provadia | 1,540.83 mi (2,479.73 km) |
| Mountain Ash to Radnevo | 1,512.39 mi (2,433.95 km) |
| Mountain Ash to Radomir | 1,378.98 mi (2,219.25 km) |
| Mountain Ash to Rakitovo | 1,448.84 mi (2,331.68 km) |
| Mountain Ash to Rakovski | 1,472.69 mi (2,370.06 km) |
| Mountain Ash to Razgrad | 1,489.04 mi (2,396.38 km) |
| Mountain Ash to Razlog | 1,427.79 mi (2,297.80 km) |
| Mountain Ash to Ruse | 1,454.56 mi (2,340.89 km) |
| Mountain Ash to Samokov | 1,412.55 mi (2,273.28 km) |
| Mountain Ash to Sandanski | 1,433.65 mi (2,307.23 km) |
| Mountain Ash to Sevlievo | 1,449.53 mi (2,332.80 km) |
| Mountain Ash to Shumen | 1,515.98 mi (2,439.74 km) |
| Mountain Ash to Silistra | 1,499.11 mi (2,412.59 km) |
| Mountain Ash to Sliven | 1,513.88 mi (2,436.35 km) |
