O site do Aeroporto de Lisboa Recomenda que, mesmo que você tenha feito o check-in online ou tenha seu cartão de embarque, você deve retornar ao aeroporto pelo menos 90 minutos antes do seu voo de ida (embora, com o tamanho e layout da instalação, 75 minutos sejam adequados).
Até sugere uma visita ao centro da cidade durante uma longa parada e se oferece para guardar qualquer bagagem.
How far in advance do I need to check-in?
The recommended check-in time varies depending on the flight. In order to avoid delays and make the most of your pre-boarding time, please respect your airline's minimum check-in time. That way, you also avoid the risk of arriving after check-in closes:
At the Airport's check-in desk:
- Schengen flights: 90 minutes
Schengen regulations have removed controls at the internal borders of signatory states: Germany, Austria, Belgium, Denmark, Slovakia, Slovenia, Spain, Estonia, Finland, France, Greece, Holland, Hungary, Iceland, Italy, Latvia, Lithuania, Luxembourg, Malta, Norway, Poland, Portugal, Czech Republic, Sweden, Switzerland.
- Non-Schengen flights (Europe): 120 minutes
- Flights to Third Countries (Intercontinental): 180 minutes
For most airlines, check-in can be made online 48 hours prior to boarding – check the recommended check-in time with your airline in advance.
Flights to the United States and Switzerland - 24 hours
Remember that, after checking-in, you will have to go through X-ray screening and, when travelling to non-Schengen destinations, you must also go through passport control. Therefore, avoid delays and plan your arrival at the airport in advance.