| Wichita Falls to Popovo | 6,064.64 mi (9,760.09 km) |
| Wichita Falls to Provadia | 6,114.00 mi (9,839.53 km) |
| Wichita Falls to Radnevo | 6,107.21 mi (9,828.61 km) |
| Wichita Falls to Radomir | 5,988.79 mi (9,638.03 km) |
| Wichita Falls to Rakitovo | 6,057.40 mi (9,748.44 km) |
| Wichita Falls to Rakovski | 6,073.73 mi (9,774.73 km) |
| Wichita Falls to Razgrad | 6,065.05 mi (9,760.76 km) |
| Wichita Falls to Razlog | 6,040.07 mi (9,720.55 km) |
| Wichita Falls to Ruse | 6,031.22 mi (9,706.32 km) |
| Wichita Falls to Samokov | 6,021.01 mi (9,689.88 km) |
| Wichita Falls to Sandanski | 6,048.80 mi (9,734.60 km) |
| Wichita Falls to Sevlievo | 6,042.16 mi (9,723.92 km) |
| Wichita Falls to Shumen | 6,091.93 mi (9,804.01 km) |
| Wichita Falls to Silistra | 6,060.45 mi (9,753.36 km) |
| Wichita Falls to Sliven | 6,101.78 mi (9,819.87 km) |
