For the cheapest flights to Amsterdam Schiphol book 58 days before departure.
The most popular airlines on the route Lisboa Portela - Amsterdam Schiphol: TAP Air Portugal (TP), Lufthansa (LH), KLM (KL).
Direct flights last about 2h 55min.
Direct flights are available 7 days a week.
Direct flights: TAP Air Portugal (TP), Iberia (IB), Vueling (VY).