| Penafiel to Siran | 2,453.23 mi (3,948.08 km) |
| Penafiel to Sirnak | 2,684.11 mi (4,319.66 km) |
| Penafiel to Sirvan | 2,648.48 mi (4,262.32 km) |
| Penafiel to Sivas | 2,355.76 mi (3,791.24 km) |
| Penafiel to Sivasli | 2,006.87 mi (3,229.75 km) |
| Penafiel to Siverek | 2,518.10 mi (4,052.50 km) |
| Penafiel to Sivrice | 2,501.16 mi (4,025.22 km) |
| Penafiel to Sivrihisar | 2,082.68 mi (3,351.76 km) |
| Penafiel to Sogut | 2,002.67 mi (3,222.99 km) |
| Penafiel to Sogutlu | 2,003.00 mi (3,223.51 km) |
| Penafiel to Soke | 1,905.02 mi (3,065.84 km) |
| Penafiel to Solhan | 2,577.38 mi (4,147.90 km) |
| Penafiel to Soma | 1,885.94 mi (3,035.12 km) |
| Penafiel to Sorgun | 2,261.78 mi (3,639.99 km) |
| Penafiel to Suhut | 2,050.32 mi (3,299.67 km) |
