Follow these steps to Cancel Your Frontier Airlines Flight Ticket.
* First, open any online browser on your laptop or desktop, such as Google, Bing, or Yahoo.
* Go to Frontier Airlines' official website.
* Select the 'Cancel' option.
* Fill in the 'Confirmation number' and 'First and Last Name' boxes.
* Select your reservation from the list by tapping the Search button, then hit the 'Cancel' button.
* As a result, travellers will get information or a cancelled ticket to their registered email address or mobile number.