Do you need to cancel your United Airlines flight from the BOS Terminal? Flexible cancellation policies are provided by United, particularly for tickets purchased directly from their website. While basic economy flights are non-refundable, depending on the time of day, other fare classes can qualify for a refund or flight credit. Cancellations can be handled by passengers online or through customer support. If your plans suddenly change, you can swiftly address the issue and consider your choices by visiting the United Airlines BOS Terminal support desk or the airline's app.

Also, you can go to : https://www.terminalfind.com/united-airlines/united-airlines-bos-terminal-boston-logan-international-airport/