Question : How many days should you spend in Lisbon?
Answer : Over the next two months, travelers from ROA to LIS are planning on staying for 10 days on average.
Question : Will you do what it takes to get the absolute cheapest flight?
Answer : Monday is your lowest-cost day to fly in July. 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 less for this route than most routes from the United States, as they're ranging from $1,097 to $1,406. 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 : Since low prices are preferred, look at Jul 10th. As of Jun 19th, it's showing the cheapest ticket sales at $1,346. That is 2% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.