Question : Who's offering the cheapest round-trip flight to George Bush Intercontinental Airport (IAH) over the coming months?
Answer : Delta Air Lines is offering the best deal at $898. Better take a look quickly because prices range all the way up to $2,949 over the next three months.
Question : How much should a trip from Lisbon (LIS) to Houston (IAH) cost?
Answer : Prices for this trip tend to change much more than other flights from Portugal. They can vary anywhere from $898 to $2,949. Prices tend to be lower the further out you book.
Question : Would you be willing to change your travel days if it saved you money?
Answer : The cheapest day to fly in June is Monday. Being flexible with your travel days garners even more savings during booking.
Question : How many days should you spend in Houston?
Answer : Passengers from LIS to IAH stay about two weeks on average.
Question : In the next four weeks, what day should you book your trip?
Answer : As of May 22nd, the best day for booking to Houston (IAH) is Jun 1st. It costs $898, which is 57% below this route's average price.