The flight time to Portugal from different locations will vary depending on your point of departure. Here are approximate flight times to Lisbon, the capital of Portugal, from a few major cities:

New York City: 7 hours
London: 2 hours
Paris: 2 hours
Madrid: 2 hours
Rome: 3 hours
Berlin: 3 hours
Istanbul: 4 hours
Dubai: 6 hours
Sydney: 22 hours
These are just estimates and the actual flight time may vary depending on factors such as wind speed and direction, the specific flight path taken, and the aircraft type. It is a good idea to check the flight time and other details with the airline or travel agency when booking your flight to Portugal.