| Seguin to Popovo | 6,283.65 mi (10,112.56 km) |
| Seguin to Provadia | 6,334.83 mi (10,194.93 km) |
| Seguin to Radnevo | 6,322.99 mi (10,175.87 km) |
| Seguin to Radomir | 6,199.57 mi (9,977.24 km) |
| Seguin to Rakitovo | 6,268.80 mi (10,088.67 km) |
| Seguin to Rakovski | 6,287.63 mi (10,118.97 km) |
| Seguin to Razgrad | 6,285.05 mi (10,114.81 km) |
| Seguin to Razlog | 6,250.02 mi (10,058.43 km) |
| Seguin to Ruse | 6,250.91 mi (10,059.87 km) |
| Seguin to Samokov | 6,232.35 mi (10,030.01 km) |
| Seguin to Sandanski | 6,257.54 mi (10,070.53 km) |
| Seguin to Sevlievo | 6,258.26 mi (10,071.70 km) |
| Seguin to Shumen | 6,312.08 mi (10,158.30 km) |
| Seguin to Silistra | 6,283.25 mi (10,111.92 km) |
| Seguin to Sliven | 6,319.30 mi (10,169.93 km) |
