| Elk City to Popovo | 6,012.94 mi (9,676.90 km) |
| Elk City to Provadia | 6,061.35 mi (9,754.79 km) |
| Elk City to Radnevo | 6,057.07 mi (9,747.91 km) |
| Elk City to Radomir | 5,941.23 mi (9,561.49 km) |
| Elk City to Rakitovo | 6,009.46 mi (9,671.29 km) |
| Elk City to Rakovski | 6,024.55 mi (9,695.58 km) |
| Elk City to Razgrad | 6,012.87 mi (9,676.77 km) |
| Elk City to Razlog | 5,992.85 mi (9,644.56 km) |
| Elk City to Ruse | 5,979.23 mi (9,622.64 km) |
| Elk City to Samokov | 5,973.14 mi (9,612.83 km) |
| Elk City to Sandanski | 6,002.16 mi (9,659.55 km) |
| Elk City to Sevlievo | 5,991.94 mi (9,643.09 km) |
| Elk City to Shumen | 6,039.64 mi (9,719.86 km) |
| Elk City to Silistra | 6,006.87 mi (9,667.13 km) |
| Elk City to Sliven | 6,050.79 mi (9,737.81 km) |
