| West Sacramento to Popovo | 6,429.32 mi (10,346.99 km) |
| West Sacramento to Provadia | 6,464.61 mi (10,403.79 km) |
| West Sacramento to Radnevo | 6,488.80 mi (10,442.72 km) |
| West Sacramento to Radomir | 6,406.62 mi (10,310.46 km) |
| West Sacramento to Rakitovo | 6,467.60 mi (10,408.60 km) |
| West Sacramento to Rakovski | 6,468.41 mi (10,409.91 km) |
| West Sacramento to Razgrad | 6,423.71 mi (10,337.97 km) |
| West Sacramento to Razlog | 6,459.66 mi (10,395.82 km) |
| West Sacramento to Ruse | 6,393.78 mi (10,289.79 km) |
| West Sacramento to Samokov | 6,433.68 mi (10,354.01 km) |
| West Sacramento to Sandanski | 6,474.83 mi (10,420.23 km) |
| West Sacramento to Sevlievo | 6,425.70 mi (10,341.16 km) |
| West Sacramento to Shumen | 6,448.06 mi (10,377.16 km) |
| West Sacramento to Silistra | 6,402.11 mi (10,303.20 km) |
| West Sacramento to Sliven | 6,473.29 mi (10,417.76 km) |
