| Leighton Buzzard to Popovo | 1,374.47 mi (2,212.00 km) |
| Leighton Buzzard to Provadia | 1,430.61 mi (2,302.34 km) |
| Leighton Buzzard to Radnevo | 1,405.00 mi (2,261.13 km) |
| Leighton Buzzard to Radomir | 1,274.45 mi (2,051.03 km) |
| Leighton Buzzard to Rakitovo | 1,344.13 mi (2,163.17 km) |
| Leighton Buzzard to Rakovski | 1,366.34 mi (2,198.91 km) |
| Leighton Buzzard to Razgrad | 1,378.97 mi (2,219.24 km) |
| Leighton Buzzard to Razlog | 1,324.07 mi (2,130.88 km) |
| Leighton Buzzard to Ruse | 1,344.46 mi (2,163.70 km) |
| Leighton Buzzard to Samokov | 1,307.74 mi (2,104.60 km) |
| Leighton Buzzard to Sandanski | 1,330.87 mi (2,141.83 km) |
| Leighton Buzzard to Sevlievo | 1,341.61 mi (2,159.11 km) |
| Leighton Buzzard to Shumen | 1,405.99 mi (2,262.73 km) |
| Leighton Buzzard to Silistra | 1,387.58 mi (2,233.09 km) |
| Leighton Buzzard to Sliven | 1,405.42 mi (2,261.80 km) |
