When getting a travel insurance quote, a trip cost must be entered. Trip cost can include any expenses of the trip that are pre-paid and non-refundable. However, if trip cancellation coverage is not needed, then a trip cost of $0 can be entered.
Some travel insurance plans will still include a limited amount of trip interruption coverage, even with a $0 trip cost. Unlike traditional trip interruption, which will reimburse unused trip cost, at a $0 trip cost, the trip interruption coverage will reimburse the cost of return airfare. Always refer to the certificate of insurance for details.