| Blue Springs to Popovo | 5,641.15 mi (9,078.56 km) |
| Blue Springs to Provadia | 5,690.24 mi (9,157.56 km) |
| Blue Springs to Radnevo | 5,684.24 mi (9,147.90 km) |
| Blue Springs to Radomir | 5,566.87 mi (8,959.02 km) |
| Blue Springs to Rakitovo | 5,635.32 mi (9,069.16 km) |
| Blue Springs to Rakovski | 5,651.13 mi (9,094.61 km) |
| Blue Springs to Razgrad | 5,641.42 mi (9,078.99 km) |
| Blue Springs to Razlog | 5,618.31 mi (9,041.80 km) |
| Blue Springs to Ruse | 5,607.64 mi (9,024.63 km) |
| Blue Springs to Samokov | 5,598.95 mi (9,010.65 km) |
| Blue Springs to Sandanski | 5,627.33 mi (9,056.31 km) |
| Blue Springs to Sevlievo | 5,619.16 mi (9,043.16 km) |
| Blue Springs to Shumen | 5,668.27 mi (9,122.20 km) |
| Blue Springs to Silistra | 5,636.47 mi (9,071.02 km) |
| Blue Springs to Sliven | 5,678.52 mi (9,138.69 km) |
