+1-888-413-6950 If you have a flight reservation with Porter and your plans change for some reason, you shouldn't be concerned. Passengers can cancel their tickets by visiting our official website, theairlinesinfo.com. As per Porter Airlines 24hours cancellation policy, if you want to cancel your flight then you can do it online from this page or you can contact our customer service team at any time, and they will assist you. If you cancel your ticket within 24 hours, you will receive a full refund within 7 business days.