Question : In the next four weeks, what day should you book your trip?
Answer : Since low prices are preferred, look at Apr 6th. As of Mar 27th, it's showing the cheapest ticket sales at $642. That is 35% below the average price for this route, so you can spend that extra money on a fun experience in Lisbon.
Question : Do prices fluctuate more for this route than others?
Answer : Ranging anywhere from $642 to $9,216, prices for IAH to LIS do fluctuate much more than most routes from the United States. The further out you book a route, the more likely you are to save.
Question : Who's offering the cheapest round-trip flight to Lisbon Portela Airport (LIS) over the coming months?
Answer : Turkish Airlines is your best bet for finding that coveted low fare. They're offering fares as low as $642, while prices for other flights are as high as $9,216.
Question : Is there another local airport that can get you to Lisbon?
Answer : Departing from George Bush Intercontinental Airport is not the only way to get to Lisbon Portela Airport. Try searching for flights from William P. Hobby Airport (HOU) as well. Over the next few months, flights from HOU to LIS are being booked 27% cheaper than flights from IAH to LIS. Being only 23 miles away, it's easily accessible for most.
Question : Do travelers from Houston typically stay in Lisbon for very long?
Answer : Travelers from IAH to LIS stay about two weeks on average.
Question : Is price more important than specific travel days for you?
Answer : The lowest-cost day to fly in April is Tuesday. Being flexible with your travel days garners even more savings during booking.