| Rockport to Popovo | 6,336.72 mi (10,197.96 km) |
| Rockport to Provadia | 6,388.81 mi (10,281.79 km) |
| Rockport to Radnevo | 6,374.31 mi (10,258.47 km) |
| Rockport to Radomir | 6,248.42 mi (10,055.86 km) |
| Rockport to Rakitovo | 6,317.91 mi (10,167.69 km) |
| Rockport to Rakovski | 6,338.01 mi (10,200.05 km) |
| Rockport to Razgrad | 6,338.63 mi (10,201.04 km) |
| Rockport to Razlog | 6,298.39 mi (10,136.28 km) |
| Rockport to Ruse | 6,304.36 mi (10,145.89 km) |
| Rockport to Samokov | 6,281.47 mi (10,109.05 km) |
| Rockport to Sandanski | 6,305.28 mi (10,147.36 km) |
| Rockport to Sevlievo | 6,309.82 mi (10,154.68 km) |
| Rockport to Shumen | 6,365.71 mi (10,244.62 km) |
| Rockport to Silistra | 6,338.33 mi (10,200.55 km) |
| Rockport to Sliven | 6,371.54 mi (10,254.00 km) |
