540 - 982 USD
In general, when booking your flight to Porto, January is the cheapest month on average.
Most flyers found that booking flight tickets 54 days in advance of their planned departure date is, on average, the best time to get cheap flights to Porto.
From most locations, the cheapest day to fly to Porto is Tuesday. Most users found that departing on a Friday was most expensive.
In general, when looking for the cheapest flight to Porto, our data indicates that morning flights are the most cost-effective. evening flights tend to be the most expensive.