United Airlines Lost and Found Contact Number +1-866-918-1914
https://www.bookunitedairlines.....com/united-airlines
Airlines may have different policies to determine when a bag is officially lost. Most airlines will declare a bag lost between five and fourteen days after the flight, but this can vary from one airline to another. In addition to the United Airlines lost and found telephone number +1-866-918-1914, you can also fill out the online claim form for the lost item. It is available on the website.