| Oakley to Popovo | 6,468.21 mi (10,409.57 km) |
| Oakley to Provadia | 6,503.60 mi (10,466.53 km) |
| Oakley to Radnevo | 6,527.60 mi (10,505.16 km) |
| Oakley to Radomir | 6,445.13 mi (10,372.43 km) |
| Oakley to Rakitovo | 6,506.19 mi (10,470.71 km) |
| Oakley to Rakovski | 6,507.12 mi (10,472.19 km) |
| Oakley to Razgrad | 6,462.64 mi (10,400.61 km) |
| Oakley to Razlog | 6,498.18 mi (10,457.80 km) |
| Oakley to Ruse | 6,432.67 mi (10,352.38 km) |
| Oakley to Samokov | 6,472.24 mi (10,416.06 km) |
| Oakley to Sandanski | 6,513.30 mi (10,482.14 km) |
| Oakley to Sevlievo | 6,464.46 mi (10,403.55 km) |
| Oakley to Shumen | 6,487.01 mi (10,439.84 km) |
| Oakley to Silistra | 6,441.13 mi (10,365.99 km) |
| Oakley to Sliven | 6,512.15 mi (10,480.30 km) |
