https://central.xero.com/s/question/0D58V000094aBZ1SAM/does-jetblue-have-a-24hour-cancellation-policy

Does JetBlue have a 24-hour cancellation policy?
https://central.xero.com/s/question/0D58V000094aBZ1SAM/does-jetblue-have-a-24hour-cancellation-policy
If it’s within 24 hours of booking, and you’re more than seven days out from your departure on a flight to or from the US booked directly with the airline, you can cancel your flight with no penalty through the airline with which you booked