Please read Jetblue Airlines' Refund Policy before you cancel your flight with the airline. Please read the following points to know more:

If you have purchased a refundable ticket, JetBlue grants a refund based on your tariff, according to the airline's refund policy. In this scenario, you can cancel your ticket at any time up until the departure date and get a full refund in the original mode of payment.
According to JetBlue's nonrefundable policy, if you purchased a nonrefundable ticket and then cancelled it, you will get a refund in the form of an e-credit, and a portion of the cancellation cost will be subtracted from the original rate.
No matter the ticket price, if a customer cancels their flight within 24 hours of booking, they will get a full refund in the mode of money used to make the initial reservation.
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