| Harwich to Popovo | 1,295.88 mi (2,085.52 km) |
| Harwich to Provadia | 1,351.58 mi (2,175.15 km) |
| Harwich to Radnevo | 1,327.72 mi (2,136.77 km) |
| Harwich to Radomir | 1,199.11 mi (1,929.78 km) |
| Harwich to Rakitovo | 1,268.61 mi (2,041.63 km) |
| Harwich to Rakovski | 1,289.74 mi (2,075.63 km) |
| Harwich to Razgrad | 1,300.05 mi (2,092.23 km) |
| Harwich to Razlog | 1,249.22 mi (2,010.42 km) |
| Harwich to Ruse | 1,265.53 mi (2,036.67 km) |
| Harwich to Samokov | 1,232.18 mi (1,983.00 km) |
| Harwich to Sandanski | 1,256.64 mi (2,022.37 km) |
| Harwich to Sevlievo | 1,264.03 mi (2,034.26 km) |
| Harwich to Shumen | 1,327.11 mi (2,135.77 km) |
| Harwich to Silistra | 1,307.79 mi (2,104.68 km) |
| Harwich to Sliven | 1,327.47 mi (2,136.36 km) |
