|New York - Lisbon||326 USD|
|Boston - Lisbon||356 USD|
|Boston - Porto||359 USD|
|Newark - Lisbon||367 USD|
|Miami - Lisbon||369 USD|
In general when looking for the cheapest flight to Portugal, try to book your flight during the month of January for the best deal.
On average, from most locations, when planning your trip to Portugal, try to book your flight in the region of 60 days in advance for the cheapest prices.
On average, the cheapest flights to Portugal are found when departing on a Monday. Try to avoid departing on a Friday, as this is usually the most expensive day.
Generally, when visiting Portugal, morning flights represent the best value. afternoon flights are likely to have higher prices.