Airlines need a lot of elements in their favor to get up and running but sometimes uncertainty occurs such as flights getting canceled, changed, or overbooked. At that time, Airlines offer credit points to passengers to show good gestures towards them. Moreover, United Airlines also offers this service to travelers named "United Airlines Credit" for future journeys or to get other amenities while traveling. To do so visit United Airlines' official website, sign in to your MileagePlus account, from homepage select the flight along with the fare option, enter the details of passengers, and then, during payment choose travel credit by checking the box, once the process is completed, the ticket will be received in registered email.