| Arcata to Smolyan | 6,414.58 mi (10,323.27 km) |
| Arcata to Sofia | 6,315.79 mi (10,164.29 km) |
| Arcata to Sopot | 6,347.79 mi (10,215.78 km) |
| Arcata to Sozopol | 6,419.05 mi (10,330.46 km) |
| Arcata to Sredets | 6,414.13 mi (10,322.55 km) |
| Arcata to Stamboliyski | 6,376.27 mi (10,261.62 km) |
| Arcata to Stara Zagora | 6,379.31 mi (10,266.51 km) |
| Arcata to Svilengrad | 6,432.61 mi (10,352.29 km) |
| Arcata to Svishtov | 6,297.98 mi (10,135.62 km) |
| Arcata to Targovishte | 6,344.81 mi (10,210.99 km) |
| Arcata to Teteven | 6,321.19 mi (10,172.97 km) |
| Arcata to Troyan | 6,332.29 mi (10,190.84 km) |
| Arcata to Tryavna | 6,348.71 mi (10,217.27 km) |
| Arcata to Tutrakan | 6,294.09 mi (10,129.36 km) |
| Arcata to Varna | 6,371.33 mi (10,253.67 km) |
