The Best Points and Miles for Free Flights to Hawaii 
If you’re using miles from your United, Delta or American Airlines account to book flights to Hawaii you’re likely paying almost 50% more than you could if you used a different travel rewards currency. There are great alternatives with transferrable points that can get you access to the same seats at much better prices.
JetBlue Award Chart for Flight Redemptions on Hawaiian Airlines
JetBlue has published economy, and business class award charts for redeeming TrueBlue points on Hawaiian Airlines operated flights. While you’ve been able to redeem TrueBlue points for Hawaiian flights, the price was correlated to the cash cost of the ticket, much like how a JetBlue award is priced, and you’d need to call up get the exact price.