Pearl Harbor excursion

Morning, Does anyone know if I will have enough time to go on the excursion of Pearl Harbor when I have a 3:00 pm flight. I spoke with Royal and they say it begins at 8:15 and it is 5 hours which gives me 1.5 hours to catch my flight. Is that enough time to go through customs and security & make my flight. Any help is greatly appreciated.

It is enough time.

Why would you go through Immigration and Customs to fly from Honolulu to the mainland of the US? Not sure where your ship is coming from, but you won't have Immigration and Customs at the airport, you would have it at the port. And the ship excursion schedule takes that into consideration.

Am I missing something here?

You will not have enough time to do Royal's organized excursion but you can still go on your own. See my response to your other thread in the Ask a Cruise Q forum. You will have to book a taxi & pay $5 per bag to store your luggage.