| Spring Hill to Popovo | 5,735.27 mi (9,230.02 km) |
| Spring Hill to Provadia | 5,792.01 mi (9,321.34 km) |
| Spring Hill to Radnevo | 5,762.00 mi (9,273.04 km) |
| Spring Hill to Radomir | 5,623.81 mi (9,050.64 km) |
| Spring Hill to Rakitovo | 5,693.67 mi (9,163.07 km) |
| Spring Hill to Rakovski | 5,720.78 mi (9,206.70 km) |
| Spring Hill to Razgrad | 5,740.26 mi (9,238.06 km) |
| Spring Hill to Razlog | 5,670.31 mi (9,125.48 km) |
| Spring Hill to Ruse | 5,705.77 mi (9,182.55 km) |
| Spring Hill to Samokov | 5,657.83 mi (9,105.39 km) |
| Spring Hill to Sandanski | 5,673.54 mi (9,130.68 km) |
| Spring Hill to Sevlievo | 5,699.88 mi (9,173.07 km) |
| Spring Hill to Shumen | 5,767.23 mi (9,281.45 km) |
| Spring Hill to Silistra | 5,749.02 mi (9,252.16 km) |
| Spring Hill to Sliven | 5,764.65 mi (9,277.30 km) |
