your flight within 24 hours of purchasing the ticket without incurring any change fees. Here are the details:
24-Hour Risk-Free Cancellation Policy
24-Hour Window: You can make changes to your flight within 24 hours of booking without any fees.
Applicable to All Tickets: This policy applies to all tickets purchased directly through United Airlines, including non-refundable fares.
Full Refund Option: If you decide to cancel instead of changing your flight, you can receive a full refund.
How to Change Your United Airlines Flight on the Same Day of Booking
Online: Log in to your United Airlines account, go to “My Trips,” select the flight, and follow the instructions to make changes.
Phone: Call United Airlines’s customer service for assistance with the change.