Travel insurance is useful only when its written terms match money or risk you cannot comfortably absorb. Start with the trip you actually booked: list each prepaid, nonrefundable flight, lodging deposit, rental, and activity. Then compare that exposure with your health plan, credit card benefits, airline rules, and the policy certificate.
Hawaiʻi is a U.S. state, but that does not make every mainland health plan, provider network, or emergency-transport arrangement identical. The decisive questions are personal: what is nonrefundable, which providers are in network, whether your itinerary includes remote trails or ocean activities, and what event would force you to cancel or leave early.
