There will soon be another new travel rule that domestic flyers will have to keep in mind before heading to the airport. Starting on June 3, United Airlines will require all domestic passengers to check in for their flights at least 45 minutes before departure.

U.S. travelers flying with United Airlines will have to check in to domestic flights a little earlier starting next week.

United Airlines is reportedly changing its policy. Flyers without checked luggage will have to check in 45 minute before their flight.