"JetBlue travel credits may be used toward JetBlue airfare and taxes, the air portion of a JetBlue Vacations package, change or cancellation fees, and any applicable increase in airfare for changes.
Travel credits cannot be applied to flights operated by our partner airlines.
When booking a new reservation online, you'll have the option to use your JetBlue travel credit on the payment screen. You can view your account balance and indicate the amount of funds you want to apply to your current booking. You'll need your TrueBlue or Travel Bank login details to access your funds.
To use a travel credit and a credit card, choose Travel Bank as your first form of payment. Once those funds have been applied, choose credit card for the remaining balance.
Travel credits can be used to book a reservation for anyone you would like. The name on the account doesn't need to match the name of the person traveling.
Travel credits cannot be used to pay for any of the following:
Change or cancellation fees for reservations booked with TrueBlue points
Same-day change fees
Even More® Speed
Even More® Space seats
Unaccompanied minor fees
Partner airline flights"