| Siloam Springs to Popovo | 5,801.74 mi (9,337.00 km) |
| Siloam Springs to Provadia | 5,851.86 mi (9,417.66 km) |
| Siloam Springs to Radnevo | 5,843.07 mi (9,403.52 km) |
| Siloam Springs to Radomir | 5,722.83 mi (9,210.01 km) |
| Siloam Springs to Rakitovo | 5,791.68 mi (9,320.80 km) |
| Siloam Springs to Rakovski | 5,808.89 mi (9,348.51 km) |
| Siloam Springs to Razgrad | 5,802.55 mi (9,338.30 km) |
| Siloam Springs to Razlog | 5,773.85 mi (9,292.11 km) |
| Siloam Springs to Ruse | 5,768.59 mi (9,283.64 km) |
| Siloam Springs to Samokov | 5,755.26 mi (9,262.19 km) |
| Siloam Springs to Sandanski | 5,782.19 mi (9,305.54 km) |
| Siloam Springs to Sevlievo | 5,778.12 mi (9,298.99 km) |
| Siloam Springs to Shumen | 5,829.50 mi (9,381.67 km) |
| Siloam Springs to Silistra | 5,799.14 mi (9,332.81 km) |
| Siloam Springs to Sliven | 5,838.31 mi (9,395.84 km) |
