How much do you think it would cost for me (alone) to fly from Hawai'i to New York?

Why not use a site like FareCompare?

I see a flight from HNL to JFK for around $400. But that is on April 30th. The date is kinda important.

Flights vary depending on which airline, which day, and what time of day. You have to be very specific to find the best deal.

Phone the airline directly. My aunt does that and says she gets better deals.

Good question. I’d like to know if it can be done nonstop.

Keep in mind that you will need to budget for a hotel, food and transportation as well. It’s not just air fare.

You could probably find a billion people in NYC who’d like to be in Honolulu right now. Maybe there’s a place where you can swap living quarters for a time? Unless it’s a permanent move. Well, maybe because it’d be a permanent move.