| Sandusky to Popovo | 5,105.22 mi (8,216.06 km) |
| Sandusky to Provadia | 5,157.36 mi (8,299.96 km) |
| Sandusky to Radnevo | 5,142.99 mi (8,276.85 km) |
| Sandusky to Radomir | 5,017.87 mi (8,075.48 km) |
| Sandusky to Rakitovo | 5,087.26 mi (8,187.15 km) |
| Sandusky to Rakovski | 5,106.91 mi (8,218.78 km) |
| Sandusky to Razgrad | 5,107.15 mi (8,219.17 km) |
| Sandusky to Razlog | 5,068.07 mi (8,156.27 km) |
| Sandusky to Ruse | 5,072.88 mi (8,164.01 km) |
| Sandusky to Samokov | 5,050.81 mi (8,128.49 km) |
| Sandusky to Sandanski | 5,075.29 mi (8,167.89 km) |
| Sandusky to Sevlievo | 5,078.45 mi (8,172.98 km) |
| Sandusky to Shumen | 5,134.23 mi (8,262.75 km) |
| Sandusky to Silistra | 5,107.05 mi (8,219.00 km) |
| Sandusky to Sliven | 5,140.09 mi (8,272.17 km) |
