JetBlue and Spirit Airlines have different cancellation policies. JetBlue offers more flexibility, allowing cancellations within 24 hours for a full refund and providing options for flight changes with fees for certain fare types. Spirit Airlines, known for its low-cost fares, charges cancellation fees and offers a Refundable Fare option.
https://www.toursntravelpro.com/blog/jetblue-vs-spirit-airlines-cancellation-policies-compared/