JetBlue Flight Change allows for free changes/ cancellations within 24 hours of booking, as long as the reservation was made at least seven days before the flight's departure.
https://www.travelintellect.co....m/jetblue-change-fli

JetBlue Change Flight Policy: TravelINtellect
www.travelintellect.com

JetBlue Change Flight Policy: TravelINtellect

JetBlue Change Flight Policy allows passengers to change their flights, including date, time, or route, without paying a change fee