| Hilo to Popovo | 8,080.46 mi (13,004.25 km) |
| Hilo to Provadia | 8,089.84 mi (13,019.33 km) |
| Hilo to Radnevo | 8,153.32 mi (13,121.51 km) |
| Hilo to Radomir | 8,134.72 mi (13,091.57 km) |
| Hilo to Rakitovo | 8,175.37 mi (13,156.99 km) |
| Hilo to Rakovski | 8,154.62 mi (13,123.59 km) |
| Hilo to Razgrad | 8,067.42 mi (12,983.26 km) |
| Hilo to Razlog | 8,181.60 mi (13,167.02 km) |
| Hilo to Ruse | 8,048.09 mi (12,952.14 km) |
| Hilo to Samokov | 8,150.38 mi (13,116.77 km) |
| Hilo to Sandanski | 8,203.10 mi (13,201.61 km) |
| Hilo to Sevlievo | 8,103.67 mi (13,041.59 km) |
| Hilo to Shumen | 8,083.99 mi (13,009.92 km) |
| Hilo to Silistra | 8,025.76 mi (12,916.21 km) |
| Hilo to Sliven | 8,126.39 mi (13,078.15 km) |
