Where can I get money for tonga in honolulu or can I just us U.S. Currency?? Thanks
They use the Pa'anga which is the tongan currency and you will be unable to use U.S currency in Tonga. I would recommend visiting your local bank in Hawai'i or go to the currency exchange shops usually at airports and you should be able to exchange there.
Hope this helps, have fun in the Kingdom of Tonga!