| Santa Clara to Popovo | 6,514.01 mi (10,483.29 km) |
| Santa Clara to Provadia | 6,549.44 mi (10,540.30 km) |
| Santa Clara to Radnevo | 6,573.37 mi (10,578.82 km) |
| Santa Clara to Radomir | 6,490.76 mi (10,445.87 km) |
| Santa Clara to Rakitovo | 6,551.87 mi (10,544.21 km) |
| Santa Clara to Rakovski | 6,552.84 mi (10,545.78 km) |
| Santa Clara to Razgrad | 6,508.46 mi (10,474.35 km) |
| Santa Clara to Razlog | 6,543.81 mi (10,531.25 km) |
| Santa Clara to Ruse | 6,478.48 mi (10,426.10 km) |
| Santa Clara to Samokov | 6,517.89 mi (10,489.54 km) |
| Santa Clara to Sandanski | 6,558.91 mi (10,555.54 km) |
| Santa Clara to Sevlievo | 6,510.22 mi (10,477.18 km) |
| Santa Clara to Shumen | 6,532.84 mi (10,513.59 km) |
| Santa Clara to Silistra | 6,486.98 mi (10,439.78 km) |
| Santa Clara to Sliven | 6,557.95 mi (10,554.00 km) |
