| Webster to Popovo | 6,182.12 mi (9,949.16 km) |
| Webster to Provadia | 6,234.46 mi (10,033.39 km) |
| Webster to Radnevo | 6,219.26 mi (10,008.93 km) |
| Webster to Radomir | 6,092.81 mi (9,805.43 km) |
| Webster to Rakitovo | 6,162.34 mi (9,917.34 km) |
| Webster to Rakovski | 6,182.74 mi (9,950.15 km) |
| Webster to Razgrad | 6,184.18 mi (9,952.47 km) |
| Webster to Razlog | 6,142.67 mi (9,885.68 km) |
| Webster to Ruse | 6,149.88 mi (9,897.27 km) |
| Webster to Samokov | 6,125.91 mi (9,858.70 km) |
| Webster to Sandanski | 6,149.43 mi (9,896.55 km) |
| Webster to Sevlievo | 6,154.83 mi (9,905.25 km) |
| Webster to Shumen | 6,211.27 mi (9,996.07 km) |
| Webster to Silistra | 6,184.30 mi (9,952.68 km) |
| Webster to Sliven | 6,216.72 mi (10,004.84 km) |
