| North Liberty to Popovo | 5,406.63 mi (8,701.13 km) |
| North Liberty to Provadia | 5,455.59 mi (8,779.92 km) |
| North Liberty to Radnevo | 5,449.97 mi (8,770.88 km) |
| North Liberty to Radomir | 5,333.14 mi (8,582.86 km) |
| North Liberty to Rakitovo | 5,401.49 mi (8,692.86 km) |
| North Liberty to Rakovski | 5,417.04 mi (8,717.88 km) |
| North Liberty to Razgrad | 5,406.83 mi (8,701.45 km) |
| North Liberty to Razlog | 5,384.67 mi (8,665.78 km) |
| North Liberty to Ruse | 5,373.08 mi (8,647.13 km) |
| North Liberty to Samokov | 5,365.15 mi (8,634.37 km) |
| North Liberty to Sandanski | 5,393.82 mi (8,680.52 km) |
| North Liberty to Sevlievo | 5,384.87 mi (8,666.11 km) |
| North Liberty to Shumen | 5,433.66 mi (8,744.63 km) |
| North Liberty to Silistra | 5,401.71 mi (8,693.21 km) |
| North Liberty to Sliven | 5,444.10 mi (8,761.44 km) |
