| Smithfield to Popovo | 6,001.17 mi (9,657.95 km) |
| Smithfield to Provadia | 6,040.94 mi (9,721.96 km) |
| Smithfield to Radnevo | 6,056.40 mi (9,746.83 km) |
| Smithfield to Radomir | 5,963.13 mi (9,596.74 km) |
| Smithfield to Rakitovo | 6,026.86 mi (9,699.30 km) |
| Smithfield to Rakovski | 6,032.06 mi (9,707.67 km) |
| Smithfield to Razgrad | 5,997.26 mi (9,651.65 km) |
| Smithfield to Razlog | 6,016.22 mi (9,682.16 km) |
| Smithfield to Ruse | 5,965.87 mi (9,601.15 km) |
| Smithfield to Samokov | 5,991.90 mi (9,643.04 km) |
| Smithfield to Sandanski | 6,029.74 mi (9,703.94 km) |
| Smithfield to Sevlievo | 5,992.08 mi (9,643.33 km) |
| Smithfield to Shumen | 6,022.60 mi (9,692.44 km) |
| Smithfield to Silistra | 5,980.40 mi (9,624.53 km) |
| Smithfield to Sliven | 6,043.63 mi (9,726.29 km) |
