| Secaucus to Popovo | 4,803.18 mi (7,729.97 km) |
| Secaucus to Provadia | 4,858.01 mi (7,818.22 km) |
| Secaucus to Radnevo | 4,835.16 mi (7,781.44 km) |
| Secaucus to Radomir | 4,702.82 mi (7,568.45 km) |
| Secaucus to Rakitovo | 4,772.70 mi (7,680.91 km) |
| Secaucus to Rakovski | 4,796.26 mi (7,718.83 km) |
| Secaucus to Razgrad | 4,806.79 mi (7,735.78 km) |
| Secaucus to Razlog | 4,751.33 mi (7,646.52 km) |
| Secaucus to Ruse | 4,772.29 mi (7,680.25 km) |
| Secaucus to Samokov | 4,736.43 mi (7,622.54 km) |
| Secaucus to Sandanski | 4,756.58 mi (7,654.98 km) |
| Secaucus to Sevlievo | 4,771.67 mi (7,679.27 km) |
| Secaucus to Shumen | 4,833.90 mi (7,779.41 km) |
| Secaucus to Silistra | 4,811.63 mi (7,743.57 km) |
| Secaucus to Sliven | 4,835.19 mi (7,781.49 km) |
