| Boynton Beach to Popovo | 5,726.91 mi (9,216.58 km) |
| Boynton Beach to Provadia | 5,784.79 mi (9,309.72 km) |
| Boynton Beach to Radnevo | 5,750.07 mi (9,253.84 km) |
| Boynton Beach to Radomir | 5,608.67 mi (9,026.29 km) |
| Boynton Beach to Rakitovo | 5,678.28 mi (9,138.31 km) |
| Boynton Beach to Rakovski | 5,707.50 mi (9,185.33 km) |
| Boynton Beach to Razgrad | 5,732.84 mi (9,226.12 km) |
| Boynton Beach to Razlog | 5,653.79 mi (9,098.90 km) |
| Boynton Beach to Ruse | 5,698.47 mi (9,170.81 km) |
| Boynton Beach to Samokov | 5,642.82 mi (9,081.25 km) |
| Boynton Beach to Sandanski | 5,655.82 mi (9,102.16 km) |
| Boynton Beach to Sevlievo | 5,689.04 mi (9,155.62 km) |
| Boynton Beach to Shumen | 5,759.62 mi (9,269.21 km) |
| Boynton Beach to Silistra | 5,744.36 mi (9,244.66 km) |
| Boynton Beach to Sliven | 5,754.41 mi (9,260.83 km) |
