Fly into Humberto Delgado Airport (LIS), the closest airport, located 8.4 mi (13.6 km) from the city center. If you're unable to find a flight that fits your schedule, you could also fly into Cascais (CAT), which is 9.2 mi (14.8 km) away.
If you prefer train travel, you can make your way to Pragal Station. It's easy to get around Caparica by catching a ride on the metro at Monte de Caparica Station, Universidade Station or Fomega Station.