Yes, if your United Airlines flight is canceled, you have the option to rebook for free by calling 
+1(855)-927-1543, subject to availability. You can either rebook your flight through the United Airlines website or by calling their customer service at +1(855)-927-1543. A representative will assist you in selecting the best alternative flight and ensure that you are rebooked with minimal hassle. If you require any further support or have questions regarding your canceled flight, United Airlines’ customer service team is available at +1(855)-927-1543 to provide detailed assistance.
+1(855)-927-1543, subject to availability. You can either rebook your flight through the United Airlines website or by calling their customer service at +1(855)-927-1543. A representative will assist you in selecting the best alternative flight and ensure that you are rebooked with minimal hassle. If you require any further support or have questions regarding your canceled flight, United Airlines’ customer service team is available at +1(855)-927-1543 to provide detailed assistance.