| Kirksville to Popovo | 5,520.37 mi (8,884.17 km) |
| Kirksville to Provadia | 5,569.62 mi (8,963.44 km) |
| Kirksville to Radnevo | 5,563.21 mi (8,953.12 km) |
| Kirksville to Radomir | 5,445.50 mi (8,763.69 km) |
| Kirksville to Rakitovo | 5,513.99 mi (8,873.90 km) |
| Kirksville to Rakovski | 5,529.96 mi (8,899.61 km) |
| Kirksville to Razgrad | 5,520.72 mi (8,884.74 km) |
| Kirksville to Razlog | 5,496.90 mi (8,846.41 km) |
| Kirksville to Ruse | 5,486.91 mi (8,830.33 km) |
| Kirksville to Samokov | 5,477.62 mi (8,815.37 km) |
| Kirksville to Sandanski | 5,505.85 mi (8,860.81 km) |
| Kirksville to Sevlievo | 5,498.14 mi (8,848.40 km) |
| Kirksville to Shumen | 5,547.58 mi (8,927.97 km) |
| Kirksville to Silistra | 5,516.02 mi (8,877.18 km) |
| Kirksville to Sliven | 5,557.62 mi (8,944.12 km) |
