If you have a ticket with JetBlue between July 25 and August 2nd, you can get a refund on collected Federal taxes just by sending an email to firstname.lastname@example.org with your name and confirmation number. Make sure to have the subject line as “Expired Tax Refund Request”.
The official JetBlue “BlueTales” blog says they are waiting for Federal guidance on what to do with your money. The refund will probably be about $25.
Information Regarding Federal Tax Changes [JetBlue Blog]