For your visit to U.S., you can consider the CoverAmerica- Gold plan. This is one of the most popular plans for travelers up to age 79. It covers for any unexpected sickness or injury that may occur during your travels. It is important to note that travel insurance policies do not generally provide coverage for pre-existing conditions and preventive care due to the short-term nature of the plans. That being said, this plan does provide limited coverage for an acute onset of a pre-existing condition which could be helpful in the event of a related emergency.
Insurance rates are regulated by law. You can't find the same insurance plan for a lower price anywhere else