Hawaii has a quarantine law because it is a rabies free state. Here is a link to read about it. http://hdoa.hawaii.gov/ai/aqs/aqs-info/ You can't just fly a dog into Hawaii without following the law. I would definitely never fly a dog in cargo though. Your Boston should be small enough to fit under the seat in an airline approved carrier. You have to pay extra for this and follow the airline's instructions for the size and type of soft carrier to buy. Good luck with your move.