United Airlines Cancellation a client support hotline for travelers to make or change reservations, get flight data, or submit questions. The hotline is accessible 24 hours every day, 7 days per week. Joined Carriers likewise offers a versatile application that permits travelers to deal with their reservations, really look at in for their flights, and get flight status data. 18002416522 or OTA: +1 888 894 2072.