Iolani School's orchestra and hula halau were going to perform in St. Patrick's Cathedral in New York City and then in Rome over the Christmas break.
But the performances, part of a 10-day tour, were abruptly cancelled this week.
And that's got some parents and kids upset.
"Disappointed. Extremely disappointed," said one parent whose child is in the orchestra. "The decision was made without asking any parents."
Iolani School said the Paris terrorist attacks and travel alerts for Americans prompted the action.
"The cancellation is understandably disappointing and a lost opportunity for many students, families and teachers, but the school has made the decision to make safety the priority for all," Iolani said in a statement.
But the parent Hawaii News Now spoke to said some don't agree with the school's decision.
"Makes us think that the board was ill-advised," he said.
Some 62 students were going. The trip is booked and paid for, and there won't be full refunds.
One parent posted on Facebook she's out $4,000 and "$4,000 is a lot of money to waste."
The parent who spoke to Hawaii News Now estimates the cancellation cost him $2,000.
"It's absurd," he said.
Iolani said the school is "doing everything possible to mitigate the financial loss to families who will not take the trip."
It will pay the $300 ticket change fee and up to $2,100 per student.
"I would like to see them reverse their decision. But it is probably too late," the parent Hawaii News Now spoke to said.
Seawind Tours and Travel had a full itinerary planned for the group, which included parents and chaperones. Iolani's orchestra and halau were supposed to leave on December 18.