| Smyrna to Popovo | 5,547.87 mi (8,928.43 km) |
| Smyrna to Provadia | 5,602.33 mi (9,016.09 km) |
| Smyrna to Radnevo | 5,580.55 mi (8,981.03 km) |
| Smyrna to Radomir | 5,448.74 mi (8,768.90 km) |
| Smyrna to Rakitovo | 5,518.61 mi (8,881.35 km) |
| Smyrna to Rakovski | 5,541.90 mi (8,918.83 km) |
| Smyrna to Razgrad | 5,551.24 mi (8,933.86 km) |
| Smyrna to Razlog | 5,497.35 mi (8,847.13 km) |
| Smyrna to Ruse | 5,516.75 mi (8,878.35 km) |
| Smyrna to Samokov | 5,482.32 mi (8,822.94 km) |
| Smyrna to Sandanski | 5,502.68 mi (8,855.70 km) |
| Smyrna to Sevlievo | 5,516.93 mi (8,878.64 km) |
| Smyrna to Shumen | 5,578.36 mi (8,977.50 km) |
| Smyrna to Silistra | 5,555.28 mi (8,940.36 km) |
| Smyrna to Sliven | 5,580.26 mi (8,980.56 km) |
