| Bixby to Popovo | 5,861.52 mi (9,433.21 km) |
| Bixby to Provadia | 5,911.20 mi (9,513.15 km) |
| Bixby to Radnevo | 5,903.60 mi (9,500.92 km) |
| Bixby to Radomir | 5,784.50 mi (9,309.25 km) |
| Bixby to Rakitovo | 5,853.19 mi (9,419.80 km) |
| Bixby to Rakovski | 5,869.85 mi (9,446.61 km) |
| Bixby to Razgrad | 5,862.10 mi (9,434.13 km) |
| Bixby to Razlog | 5,835.68 mi (9,391.62 km) |
| Bixby to Ruse | 5,828.21 mi (9,379.60 km) |
| Bixby to Samokov | 5,816.79 mi (9,361.22 km) |
| Bixby to Sandanski | 5,844.28 mi (9,405.46 km) |
| Bixby to Sevlievo | 5,838.59 mi (9,396.30 km) |
| Bixby to Shumen | 5,889.00 mi (9,477.43 km) |
| Bixby to Silistra | 5,858.00 mi (9,427.54 km) |
| Bixby to Sliven | 5,898.43 mi (9,492.61 km) |
