Screen time is very limited in our house, but having it for traveling is absolutely necessary. We have had some very long and very loud flights with my daughter and I am willing to do anything to prevent that again, including setting an iPad in front of her for the entire flight.
"W.H.O. Says Limited or No Screen Time for Children Under 5" https://www.nytimes.com/2019/04/24/health/screen-time-kids.h...