| North Platte to Popovo | 5,734.75 mi (9,229.18 km) |
| North Platte to Provadia | 5,780.23 mi (9,302.38 km) |
| North Platte to Radnevo | 5,783.18 mi (9,307.13 km) |
| North Platte to Radomir | 5,675.27 mi (9,133.47 km) |
| North Platte to Rakitovo | 5,742.12 mi (9,241.05 km) |
| North Platte to Rakovski | 5,753.56 mi (9,259.46 km) |
| North Platte to Razgrad | 5,733.26 mi (9,226.79 km) |
| North Platte to Razlog | 5,727.70 mi (9,217.85 km) |
| North Platte to Ruse | 5,700.29 mi (9,173.72 km) |
| North Platte to Samokov | 5,706.14 mi (9,183.15 km) |
| North Platte to Sandanski | 5,738.67 mi (9,235.50 km) |
| North Platte to Sevlievo | 5,718.04 mi (9,202.29 km) |
| North Platte to Shumen | 5,759.64 mi (9,269.25 km) |
| North Platte to Silistra | 5,723.30 mi (9,210.77 km) |
| North Platte to Sliven | 5,774.47 mi (9,293.11 km) |
