Question : How many days should you spend in Porto if you're flying in from Raleigh?
Answer : Of course you're not most people, but if you were, you'd stay roughly nine days.
Question : Can you cut down on flight costs by changing the day of the week you travel to Porto?
Answer : Sunday is your cheapest day to fly in December. Having flexibility in your travel plans means you can save, so be sure to plan ahead when possible.
Question : Do prices fluctuate more for this route than others?
Answer : Prices for RDU to OPO do change a lot more than most routes. Remember, you can save by booking further in advance.