Hawaiian Airlines EU261 flight delay compensation regulation
In case you booked Hawaiian Airlines flight that departed from Europe, you may have rights under European EU261 law in case your Hawaiian Airlines flight is not on time or cancelled.

If your Hawaiian Airlines flight was delayed causing you to arrive later than 3 hours after the original arrival time, then it is your legal right under EU261 regulation to receive compensation from Hawaiian Airlines.
What to do if Hawaiian Airlines flight was delayed?
Know your rights as Hawaiian Airlines passenger. If your Hawaiian Airlines flight was delayed causing you to arrive later than 3 hours after the original arrival time, then it is your legal right under EU261 regulation to receive compensation from Hawaiian Airlines. The EU261 compensation can be up to €600 per passenger in the form of cash, electronic bank transfer, cheque or travel vouchers.