| Chapel Hill to Popovo | 5,227.60 mi (8,413.01 km) |
| Chapel Hill to Provadia | 5,282.92 mi (8,502.05 km) |
| Chapel Hill to Radnevo | 5,258.28 mi (8,462.39 km) |
| Chapel Hill to Radomir | 5,124.31 mi (8,246.78 km) |
| Chapel Hill to Rakitovo | 5,194.24 mi (8,359.32 km) |
| Chapel Hill to Rakovski | 5,218.76 mi (8,398.78 km) |
| Chapel Hill to Razgrad | 5,231.55 mi (8,419.37 km) |
| Chapel Hill to Razlog | 5,172.31 mi (8,324.03 km) |
| Chapel Hill to Ruse | 5,197.03 mi (8,363.82 km) |
| Chapel Hill to Samokov | 5,158.06 mi (8,301.09 km) |
| Chapel Hill to Sandanski | 5,177.01 mi (8,331.60 km) |
| Chapel Hill to Sevlievo | 5,195.11 mi (8,360.72 km) |
| Chapel Hill to Shumen | 5,258.64 mi (8,462.96 km) |
| Chapel Hill to Silistra | 5,237.32 mi (8,428.65 km) |
| Chapel Hill to Sliven | 5,258.98 mi (8,463.51 km) |
