| Napa to Smolyan | 6,539.40 mi (10,524.14 km) |
| Napa to Sofia | 6,439.35 mi (10,363.14 km) |
| Napa to Sopot | 6,473.90 mi (10,418.73 km) |
| Napa to Sozopol | 6,550.30 mi (10,541.68 km) |
| Napa to Sredets | 6,544.40 mi (10,532.20 km) |
| Napa to Stamboliyski | 6,501.40 mi (10,462.99 km) |
| Napa to Stara Zagora | 6,506.83 mi (10,471.73 km) |
| Napa to Svilengrad | 6,560.43 mi (10,557.99 km) |
| Napa to Svishtov | 6,426.24 mi (10,342.03 km) |
| Napa to Targovishte | 6,474.89 mi (10,420.33 km) |
| Napa to Teteven | 6,446.71 mi (10,374.98 km) |
| Napa to Troyan | 6,458.60 mi (10,394.12 km) |
| Napa to Tryavna | 6,476.43 mi (10,422.81 km) |
| Napa to Tutrakan | 6,425.06 mi (10,340.13 km) |
| Napa to Varna | 6,503.76 mi (10,466.79 km) |
