How Do I Know If My Delta Ticket Is Refundable?

The easiest way to determine if your Delta ticket is refundable is to check the fare rules when you purchase your ticket. If the fare rules state that the key is refundable, you can request a refund if you need to cancel your flight. Alternatively, you can also review your itinerary on the Delta website or app to check your ticket’s fare class and fare rules.

Source: https://flyustravels.com/blog/my-delta-ticket-is-refundable/