| Saint-Brieuc to Popovo | 1,429.04 mi (2,299.82 km) |
| Saint-Brieuc to Provadia | 1,488.69 mi (2,395.82 km) |
| Saint-Brieuc to Radnevo | 1,447.01 mi (2,328.74 km) |
| Saint-Brieuc to Radomir | 1,303.78 mi (2,098.23 km) |
| Saint-Brieuc to Rakitovo | 1,373.30 mi (2,210.11 km) |
| Saint-Brieuc to Rakovski | 1,403.41 mi (2,258.57 km) |
| Saint-Brieuc to Razgrad | 1,436.77 mi (2,312.25 km) |
| Saint-Brieuc to Razlog | 1,348.77 mi (2,170.64 km) |
| Saint-Brieuc to Ruse | 1,402.95 mi (2,257.84 km) |
| Saint-Brieuc to Samokov | 1,337.95 mi (2,153.22 km) |
| Saint-Brieuc to Sandanski | 1,351.11 mi (2,174.40 km) |
| Saint-Brieuc to Sevlievo | 1,387.43 mi (2,232.85 km) |
| Saint-Brieuc to Shumen | 1,462.95 mi (2,354.38 km) |
| Saint-Brieuc to Silistra | 1,454.78 mi (2,341.23 km) |
| Saint-Brieuc to Sliven | 1,453.35 mi (2,338.94 km) |
