| Grand Forks to Popovo | 5,251.58 mi (8,451.60 km) |
| Grand Forks to Provadia | 5,295.58 mi (8,522.41 km) |
| Grand Forks to Radnevo | 5,302.05 mi (8,532.82 km) |
| Grand Forks to Radomir | 5,198.52 mi (8,366.20 km) |
| Grand Forks to Rakitovo | 5,264.47 mi (8,472.34 km) |
| Grand Forks to Rakovski | 5,273.97 mi (8,487.63 km) |
| Grand Forks to Razgrad | 5,249.42 mi (8,448.13 km) |
| Grand Forks to Razlog | 5,251.25 mi (8,451.08 km) |
| Grand Forks to Ruse | 5,216.83 mi (8,395.68 km) |
| Grand Forks to Samokov | 5,228.76 mi (8,414.87 km) |
| Grand Forks to Sandanski | 5,263.10 mi (8,470.14 km) |
| Grand Forks to Sevlievo | 5,237.04 mi (8,428.20 km) |
| Grand Forks to Shumen | 5,275.56 mi (8,490.20 km) |
| Grand Forks to Silistra | 5,237.61 mi (8,429.11 km) |
| Grand Forks to Sliven | 5,292.14 mi (8,516.88 km) |
