| Forest Grove to Smolyan | 6,099.24 mi (9,815.78 km) |
| Forest Grove to Sofia | 6,001.18 mi (9,657.97 km) |
| Forest Grove to Sopot | 6,031.82 mi (9,707.28 km) |
| Forest Grove to Sozopol | 6,100.58 mi (9,817.93 km) |
| Forest Grove to Sredets | 6,096.11 mi (9,810.75 km) |
| Forest Grove to Stamboliyski | 6,060.79 mi (9,753.90 km) |
| Forest Grove to Stara Zagora | 6,062.62 mi (9,756.85 km) |
| Forest Grove to Svilengrad | 6,115.75 mi (9,842.35 km) |
| Forest Grove to Svishtov | 5,980.97 mi (9,625.45 km) |
| Forest Grove to Targovishte | 6,026.92 mi (9,699.39 km) |
| Forest Grove to Teteven | 6,005.54 mi (9,664.98 km) |
| Forest Grove to Troyan | 6,016.24 mi (9,682.20 km) |
| Forest Grove to Tryavna | 6,031.95 mi (9,707.48 km) |
| Forest Grove to Tutrakan | 5,975.81 mi (9,617.14 km) |
| Forest Grove to Varna | 6,052.35 mi (9,740.32 km) |
