| Owosso to Popovo | 5,084.00 mi (8,181.91 km) |
| Owosso to Provadia | 5,135.00 mi (8,263.99 km) |
| Owosso to Radnevo | 5,123.92 mi (8,246.15 km) |
| Owosso to Radomir | 5,001.88 mi (8,049.76 km) |
| Owosso to Rakitovo | 5,070.93 mi (8,160.87 km) |
| Owosso to Rakovski | 5,089.01 mi (8,189.97 km) |
| Owosso to Razgrad | 5,085.28 mi (8,183.97 km) |
| Owosso to Razlog | 5,052.65 mi (8,131.45 km) |
| Owosso to Ruse | 5,051.17 mi (8,129.08 km) |
| Owosso to Samokov | 5,034.49 mi (8,102.23 km) |
| Owosso to Sandanski | 5,060.64 mi (8,144.31 km) |
| Owosso to Sevlievo | 5,059.10 mi (8,141.84 km) |
| Owosso to Shumen | 5,112.30 mi (8,227.45 km) |
| Owosso to Silistra | 5,083.32 mi (8,180.81 km) |
| Owosso to Sliven | 5,119.88 mi (8,239.66 km) |
