Question : How much should a trip from Portland (PWM) to Lisbon (LIS) cost?
Answer : Flight prices are fluctuating much more for this route than the majority of routes from the United States, as they're ranging anywhere from $937 to $4,434. Remember, you can save by booking further in advance.
Question : Would you be willing to change your travel days if it saved you money?
Answer : Saturday is your cheapest day to fly in the month of July. Having flexibility in your travel plans means you can save more, so be sure to plan ahead when possible.
Question : How long do most people stay in Lisbon?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.
Question : What is the cheapest day to fly in the next four weeks?
Answer : As of Jun 26th, the best day for booking to Lisbon (LIS) is Jul 1st. It costs $1,490, which is 50% below this route's average price.