Question : Will you do what it takes to get the absolute lowest-cost flight?
Answer : The cheapest day to fly in May is Sunday. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
Question : Is the price you found a good deal?
Answer : Flight prices are fluctuating much more for this route than most routes from the United States, as they're ranging anywhere from $525 to $3,770. The further out you book a route, the more likely you are to save.
Question : What day in the next four weeks has the best fares?
Answer : As of Apr 24th, the best day for deals to Porto (OPO) is May 21st. It costs $525, which is 65% below this route's average price.
Question : Do travelers from Philadelphia typically stay in Porto for very long?
Answer : The average time spent in Porto by passengers from Philadelphia is about two weeks.