United Airlines Requires Domestic Check-In 45 Minutes Before Departure Starting June 3

United Airlines announced a new policy effective June 3 that requires all domestic passengers, including those without checked bags, to check in at least 45 minutes before departure, up from the previous 30-minute window for passengers without checked bags. This change aligns the check-in deadline with the airline's existing policy for passengers with checked luggage and matches the check-in policies of most other airlines. The airline stated the updated deadline aims to improve efficiency, reduce operational delays, and provide staff more time to assist with seating changes and carry-on baggage issues. Passengers who fail to meet the new cutoff risk being denied boarding, emphasizing the need to arrive earlier, with the airline recommending arriving at least 90 minutes prior to flights during busy periods. International check-in requirements remain unchanged at 60 minutes before departure. The stricter deadline comes amid growing domestic travel demand, and United plans to enforce the policy strictly without exceptions.