| Larkspur to Popovo | 6,489.04 mi (10,443.11 km) |
| Larkspur to Provadia | 6,523.91 mi (10,499.22 km) |
| Larkspur to Radnevo | 6,548.89 mi (10,539.42 km) |
| Larkspur to Radomir | 6,467.73 mi (10,408.81 km) |
| Larkspur to Rakitovo | 6,528.45 mi (10,506.52 km) |
| Larkspur to Rakovski | 6,528.87 mi (10,507.19 km) |
| Larkspur to Razgrad | 6,483.29 mi (10,433.84 km) |
| Larkspur to Razlog | 6,520.75 mi (10,494.13 km) |
| Larkspur to Ruse | 6,453.50 mi (10,385.90 km) |
| Larkspur to Samokov | 6,494.63 mi (10,452.09 km) |
| Larkspur to Sandanski | 6,536.05 mi (10,518.76 km) |
| Larkspur to Sevlievo | 6,485.92 mi (10,438.08 km) |
| Larkspur to Shumen | 6,507.54 mi (10,472.87 km) |
| Larkspur to Silistra | 6,461.26 mi (10,398.39 km) |
| Larkspur to Sliven | 6,533.14 mi (10,514.07 km) |
