| Sarpsborg to Popovo | 1,273.40 mi (2,049.33 km) |
| Sarpsborg to Provadia | 1,309.85 mi (2,108.01 km) |
| Sarpsborg to Radnevo | 1,333.42 mi (2,145.93 km) |
| Sarpsborg to Radomir | 1,261.70 mi (2,030.51 km) |
| Sarpsborg to Rakitovo | 1,318.34 mi (2,121.67 km) |
| Sarpsborg to Rakovski | 1,315.10 mi (2,116.45 km) |
| Sarpsborg to Razgrad | 1,268.00 mi (2,040.65 km) |
| Sarpsborg to Razlog | 1,313.96 mi (2,114.61 km) |
| Sarpsborg to Ruse | 1,237.86 mi (1,992.15 km) |
| Sarpsborg to Samokov | 1,286.02 mi (2,069.65 km) |
| Sarpsborg to Sandanski | 1,331.37 mi (2,142.63 km) |
| Sarpsborg to Sevlievo | 1,270.93 mi (2,045.37 km) |
| Sarpsborg to Shumen | 1,292.62 mi (2,080.27 km) |
| Sarpsborg to Silistra | 1,248.34 mi (2,009.01 km) |
| Sarpsborg to Sliven | 1,317.39 mi (2,120.13 km) |
