| Schertz to Popovo | 6,295.30 mi (10,131.31 km) |
| Schertz to Provadia | 6,346.37 mi (10,213.50 km) |
| Schertz to Radnevo | 6,334.84 mi (10,194.94 km) |
| Schertz to Radomir | 6,211.70 mi (9,996.76 km) |
| Schertz to Rakitovo | 6,280.91 mi (10,108.14 km) |
| Schertz to Rakovski | 6,299.59 mi (10,138.21 km) |
| Schertz to Razgrad | 6,296.63 mi (10,133.45 km) |
| Schertz to Razlog | 6,262.20 mi (10,078.04 km) |
| Schertz to Ruse | 6,262.51 mi (10,078.54 km) |
| Schertz to Samokov | 6,244.46 mi (10,049.48 km) |
| Schertz to Sandanski | 6,269.79 mi (10,090.25 km) |
| Schertz to Sevlievo | 6,270.09 mi (10,090.73 km) |
| Schertz to Shumen | 6,323.65 mi (10,176.94 km) |
| Schertz to Silistra | 6,294.66 mi (10,130.28 km) |
| Schertz to Sliven | 6,331.04 mi (10,188.83 km) |
