| Port Washington to Popovo | 4,785.56 mi (7,701.62 km) |
| Port Washington to Provadia | 4,840.48 mi (7,790.00 km) |
| Port Washington to Radnevo | 4,817.35 mi (7,752.78 km) |
| Port Washington to Radomir | 4,684.80 mi (7,539.45 km) |
| Port Washington to Rakitovo | 4,754.69 mi (7,651.93 km) |
| Port Washington to Rakovski | 4,778.37 mi (7,690.04 km) |
| Port Washington to Razgrad | 4,789.23 mi (7,707.52 km) |
| Port Washington to Razlog | 4,733.25 mi (7,617.43 km) |
| Port Washington to Ruse | 4,754.72 mi (7,651.98 km) |
| Port Washington to Samokov | 4,718.43 mi (7,593.57 km) |
| Port Washington to Sandanski | 4,738.44 mi (7,625.79 km) |
| Port Washington to Sevlievo | 4,753.91 mi (7,650.68 km) |
| Port Washington to Shumen | 4,816.33 mi (7,751.14 km) |
| Port Washington to Silistra | 4,794.23 mi (7,715.57 km) |
| Port Washington to Sliven | 4,817.48 mi (7,752.99 km) |
