Have you missed your United flight? Even after lots of planning, you can still miss your flight. But don’t worry! You can rebook for the next available flight by visiting the official website, contacting customer service, or at the airport. United Airlines allows you to join a standby list to get a next available flight on the same day of scheduled departure. If you need guidance, contact the United Airlines toll-free number to get your queries solved.  

See more : How to Rebook Your United Airlines Missed Flight