| Oak Creek to Popovo | 5,221.21 mi (8,402.73 km) |
| Oak Creek to Provadia | 5,271.02 mi (8,482.88 km) |
| Oak Creek to Radnevo | 5,263.20 mi (8,470.30 km) |
| Oak Creek to Radomir | 5,144.28 mi (8,278.91 km) |
| Oak Creek to Rakitovo | 5,212.92 mi (8,389.39 km) |
| Oak Creek to Rakovski | 5,229.47 mi (8,416.02 km) |
| Oak Creek to Razgrad | 5,221.85 mi (8,403.75 km) |
| Oak Creek to Razlog | 5,195.52 mi (8,361.38 km) |
| Oak Creek to Ruse | 5,187.94 mi (8,349.18 km) |
| Oak Creek to Samokov | 5,176.53 mi (8,330.82 km) |
| Oak Creek to Sandanski | 5,204.23 mi (8,375.40 km) |
| Oak Creek to Sevlievo | 5,198.19 mi (8,365.68 km) |
| Oak Creek to Shumen | 5,248.77 mi (8,447.07 km) |
| Oak Creek to Silistra | 5,218.01 mi (8,397.57 km) |
| Oak Creek to Sliven | 5,258.06 mi (8,462.03 km) |
