| Woburn to Popovo | 4,612.19 mi (7,422.60 km) |
| Woburn to Provadia | 4,667.06 mi (7,510.90 km) |
| Woburn to Radnevo | 4,644.13 mi (7,474.01 km) |
| Woburn to Radomir | 4,511.82 mi (7,261.07 km) |
| Woburn to Rakitovo | 4,581.70 mi (7,373.53 km) |
| Woburn to Rakovski | 4,605.23 mi (7,411.41 km) |
| Woburn to Razgrad | 4,615.82 mi (7,428.45 km) |
| Woburn to Razlog | 4,560.36 mi (7,339.19 km) |
| Woburn to Ruse | 4,581.32 mi (7,372.92 km) |
| Woburn to Samokov | 4,545.43 mi (7,315.16 km) |
| Woburn to Sandanski | 4,565.65 mi (7,347.70 km) |
| Woburn to Sevlievo | 4,580.65 mi (7,371.84 km) |
| Woburn to Shumen | 4,642.93 mi (7,472.07 km) |
| Woburn to Silistra | 4,620.76 mi (7,436.39 km) |
| Woburn to Sliven | 4,644.18 mi (7,474.08 km) |
