| Oakton to Popovo | 5,018.44 mi (8,076.40 km) |
| Oakton to Provadia | 5,073.16 mi (8,164.46 km) |
| Oakton to Radnevo | 5,050.65 mi (8,128.23 km) |
| Oakton to Radomir | 4,918.48 mi (7,915.54 km) |
| Oakton to Rakitovo | 4,988.36 mi (8,027.99 km) |
| Oakton to Rakovski | 5,011.83 mi (8,065.76 km) |
| Oakton to Razgrad | 5,021.98 mi (8,082.09 km) |
| Oakton to Razlog | 4,967.03 mi (7,993.66 km) |
| Oakton to Ruse | 4,987.47 mi (8,026.57 km) |
| Oakton to Samokov | 4,952.08 mi (7,969.61 km) |
| Oakton to Sandanski | 4,972.31 mi (8,002.16 km) |
| Oakton to Sevlievo | 4,987.12 mi (8,025.99 km) |
| Oakton to Shumen | 5,049.09 mi (8,125.72 km) |
| Oakton to Silistra | 5,026.56 mi (8,089.47 km) |
| Oakton to Sliven | 5,050.58 mi (8,128.12 km) |
