Flying United Airlines this summer? ✈️ Take note: starting June 3, the airline is tightening its check-in policy for all domestic flights. Passengers must now check in at least 45 minutes before departure—regardless of whether they have checked baggage. ⏱️ That’s a 15-minute increase from the previous 30-minute window. #airlinenews #aviationnews #travelnews #travelinfo #unitedairlines #flightdeals #travellife #asaptickets #travelreels | ASAP Tickets