In general, when looking for the cheapest flight to Porto, try to choose a flight departing in October for the best deal.
From most locations, booking your flights to Porto around 53 days prior to your departure date finds the best deals.
On average, the cheapest flights to Porto are found when departing on a Sunday. Try to avoid departing on a Thursday, as this is usually the most expensive day.
In general, when looking for the cheapest flight to Porto, our data indicates that afternoon flights are the most cost-effective. evening flights tend to be the most expensive.