Jetblue flight changes?

Question

Do they (jetblue) charge if i need to change my flight from morning to the night? cause i have something to do that same day morning and i cant leave until night..

Answer 1

https://www.jetblueairways.com/cgi-bin/s...

This is jetblue's page about changing or cancelling a flight.  It says  "The fee to change or cancel a flight is $100 when you change or cancel online or when you call 1-800-JETBLUE (538-2583)."

So yes they do charge.