"Are we there yet?"

Kids may say the darndest things, but they’re actually quite predictable.

According to a psychologist, most kids younger than 12 can only wait 49 minutes and 47 seconds before asking the dreaded four words: “Are we there yet?”

On long-haul flights, this means that parents are likely to experience hours of boredom with their children — unless they come prepared.

Research from Dr. Sandi Mann, a psychologist who specializes in boredom at the University of Central Lancashire, and Emirates found that travelers ages three and four are most likely to be the most disruptive to other passengers onboard flights.

“Parents of children aged three to four will start to find that this is when their children are physically very active, gaining independence and when they need more sophisticated things to entertain them than they did when they were younger,” Dr. Mann said, according to Yahoo News UK.

For the percentage of parents who worry about their kids disturbing fellow passengers (surprisingly only 43 percent), there are different techniques that will occupy all different ages. Younger travelers from newborns to six years old are best occupied with sleeping, walking up and down the airplane aisle, and coloring books. Older children up to age 12 can watch movies, listen to music, and chat with family to pass the time.

Parents who are dreading the prep work before a long-haul flight with children may just want to reconsider their travel plans; other research has proven that kids don’t even like venturing to new places.