| Portchester to Popovo | 1,376.89 mi (2,215.89 km) |
| Portchester to Provadia | 1,434.33 mi (2,308.33 km) |
| Portchester to Radnevo | 1,403.56 mi (2,258.81 km) |
| Portchester to Radomir | 1,268.55 mi (2,041.53 km) |
| Portchester to Rakitovo | 1,338.46 mi (2,154.04 km) |
| Portchester to Rakovski | 1,363.21 mi (2,193.87 km) |
| Portchester to Razgrad | 1,382.43 mi (2,224.80 km) |
| Portchester to Razlog | 1,316.94 mi (2,119.40 km) |
| Portchester to Ruse | 1,348.02 mi (2,169.42 km) |
| Portchester to Samokov | 1,302.25 mi (2,095.76 km) |
| Portchester to Sandanski | 1,322.39 mi (2,128.18 km) |
| Portchester to Sevlievo | 1,341.13 mi (2,158.35 km) |
| Portchester to Shumen | 1,409.27 mi (2,268.01 km) |
| Portchester to Silistra | 1,394.08 mi (2,243.55 km) |
| Portchester to Sliven | 1,405.84 mi (2,262.48 km) |
