| Irondale to Popovo | 5,648.19 mi (9,089.88 km) |
| Irondale to Provadia | 5,702.10 mi (9,176.65 km) |
| Irondale to Radnevo | 5,682.13 mi (9,144.50 km) |
| Irondale to Radomir | 5,551.78 mi (8,934.73 km) |
| Irondale to Rakitovo | 5,621.58 mi (9,047.06 km) |
| Irondale to Rakovski | 5,644.06 mi (9,083.23 km) |
| Irondale to Razgrad | 5,651.20 mi (9,094.73 km) |
| Irondale to Razlog | 5,600.77 mi (9,013.57 km) |
| Irondale to Ruse | 5,616.75 mi (9,039.29 km) |
| Irondale to Samokov | 5,585.24 mi (8,988.57 km) |
| Irondale to Sandanski | 5,606.51 mi (9,022.81 km) |
| Irondale to Sevlievo | 5,618.25 mi (9,041.71 km) |
| Irondale to Shumen | 5,678.33 mi (9,138.38 km) |
| Irondale to Silistra | 5,654.18 mi (9,099.52 km) |
| Irondale to Sliven | 5,681.21 mi (9,143.03 km) |
