| Cambridge to Popovo | 1,347.94 mi (2,169.30 km) |
| Cambridge to Provadia | 1,403.55 mi (2,258.79 km) |
| Cambridge to Radnevo | 1,379.90 mi (2,220.74 km) |
| Cambridge to Radomir | 1,251.24 mi (2,013.68 km) |
| Cambridge to Rakitovo | 1,320.76 mi (2,125.56 km) |
| Cambridge to Rakovski | 1,341.93 mi (2,159.62 km) |
| Cambridge to Razgrad | 1,352.05 mi (2,175.91 km) |
| Cambridge to Razlog | 1,301.31 mi (2,094.26 km) |
| Cambridge to Ruse | 1,317.52 mi (2,120.35 km) |
| Cambridge to Samokov | 1,284.33 mi (2,066.93 km) |
| Cambridge to Sandanski | 1,308.67 mi (2,106.10 km) |
| Cambridge to Sevlievo | 1,316.19 mi (2,118.20 km) |
| Cambridge to Shumen | 1,379.11 mi (2,219.46 km) |
| Cambridge to Silistra | 1,359.55 mi (2,187.99 km) |
| Cambridge to Sliven | 1,379.60 mi (2,220.26 km) |
