Question : What day in the next four weeks has the best fares?
Answer : Since low prices are preferred, look at Mar 11th. As of Feb 20th, it's showing the cheapest ticket sales at $5,475. That is 16% below the average price for this route, so you can spend that extra money on an adventure rather than the flight.
Question : How much should a trip from Kalibo (KLO) to Houston (IAH) cost?
Answer : Flight prices are fluctuating less for this route than most routes from the Philippines, as they're ranging from $5,475 to $8,076. Prices tend to be lower the further out you book.
Question : How long do most people stay in Houston?
Answer : Of course you're not most people, but if you were, you'd stay roughly 10 days.
Question : Is price more important than specific travel days for you?
Answer : In March, Saturday is your lowest-cost day to fly. Flexibility is paramount when booking travel plans in order to keep travel costs down.