| Kilwinning to Popovo | 1,607.69 mi (2,587.33 km) |
| Kilwinning to Provadia | 1,659.91 mi (2,671.37 km) |
| Kilwinning to Radnevo | 1,646.84 mi (2,650.33 km) |
| Kilwinning to Radomir | 1,527.45 mi (2,458.20 km) |
| Kilwinning to Rakitovo | 1,595.86 mi (2,568.29 km) |
| Kilwinning to Rakovski | 1,612.37 mi (2,594.86 km) |
| Kilwinning to Razgrad | 1,609.61 mi (2,590.41 km) |
| Kilwinning to Razlog | 1,579.03 mi (2,541.20 km) |
| Kilwinning to Ruse | 1,575.32 mi (2,535.24 km) |
| Kilwinning to Samokov | 1,559.50 mi (2,509.77 km) |
| Kilwinning to Sandanski | 1,588.48 mi (2,556.40 km) |
| Kilwinning to Sevlievo | 1,582.01 mi (2,546.00 km) |
| Kilwinning to Shumen | 1,636.69 mi (2,634.01 km) |
| Kilwinning to Silistra | 1,610.50 mi (2,591.85 km) |
| Kilwinning to Sliven | 1,642.96 mi (2,644.09 km) |
