In case you leave the airport and realize that something is left on the plane, do not fret! Being a passenger-friendly airline, you will be provided with another way to inform about the United Airlines Baggage lost and found. This could be done via a phone call on the United Airlines lost and found customer service number or simply filling out the online form. For more details to contact us at +1-866-918-1914 or https://www.bookunitedairlines.com/united-airlines-lost-and-found-number/