| Biarritz to Setubal | 512.88 mi (825.40 km) |
| Biarritz to Sever do Vouga | 397.00 mi (638.91 km) |
| Biarritz to Silves | 565.55 mi (910.16 km) |
| Biarritz to Sines | 540.01 mi (869.07 km) |
| Biarritz to Sintra | 519.72 mi (836.41 km) |
| Biarritz to Sobrado de Paiva | 382.21 mi (615.11 km) |
| Biarritz to Sobral de Monte Agraco | 500.23 mi (805.04 km) |
| Biarritz to Soure | 434.55 mi (699.34 km) |
| Biarritz to Tabua | 396.14 mi (637.53 km) |
| Biarritz to Tavira | 543.98 mi (875.46 km) |
| Biarritz to Tomar | 444.28 mi (714.99 km) |
| Biarritz to Tondela | 392.40 mi (631.50 km) |
| Biarritz to Torre de Moncorvo | 325.22 mi (523.39 km) |
| Biarritz to Torres Novas | 454.93 mi (732.14 km) |
| Biarritz to Torres Vedras | 502.03 mi (807.94 km) |
