| Ontario to Popovo | 6,623.89 mi (10,660.12 km) |
| Ontario to Provadia | 6,663.23 mi (10,723.43 km) |
| Ontario to Radnevo | 6,679.48 mi (10,749.58 km) |
| Ontario to Radomir | 6,586.69 mi (10,600.25 km) |
| Ontario to Rakitovo | 6,650.36 mi (10,702.72 km) |
| Ontario to Rakovski | 6,655.38 mi (10,710.80 km) |
| Ontario to Razgrad | 6,619.82 mi (10,653.56 km) |
| Ontario to Razlog | 6,639.77 mi (10,685.68 km) |
| Ontario to Ruse | 6,588.56 mi (10,603.26 km) |
| Ontario to Samokov | 6,615.42 mi (10,646.50 km) |
| Ontario to Sandanski | 6,653.32 mi (10,707.48 km) |
| Ontario to Sevlievo | 6,615.23 mi (10,646.18 km) |
| Ontario to Shumen | 6,645.07 mi (10,694.21 km) |
| Ontario to Silistra | 6,602.44 mi (10,625.60 km) |
| Ontario to Sliven | 6,666.50 mi (10,728.69 km) |
