Despite opening its borders, Costa Rica will limit passenger volume on incoming flights to 35-40 percent compared to previous years.
Currently, residents of California, Ohio, Connecticut, Maine, Maryland, New Hampshire, New Jersey, New York, Vermont, Virginia, Washington, DC, Arizona, Colorado, Massachusetts, Michigan, New Mexico, Oregon, Pennsylvania, Rhode Island, Washington, and Wyoming are allowed to travel to Costa Rica. As of October 15, residents of Florida, Georgia, and Texas will be allowed in, and the doors will open to all US residents on November 1. Proof of residence such as a driver’s license or state identification will be required.
Incoming tourists will be required to fill out an online health questionnaire, show proof of a negative COVID-19 PCR test taken within 72 hours of arrival in Costa Rica, and have traveler’s medical insurance.
Travelers from Europe’s Schengen Zone, the UK, Canada, Mexico, Uruguay, Jamaica, Japan, South Korea, Thailand, Singapore, China, Australia, and New Zealand are also allowed to enter under the same requirements.
For more information about traveling to Costa Rica and entry requirements, visit the official website of the Costa Rica tourism bureau. 
A version of this article was previously published on August 21, 2020, and was updated on October 6, 2020, with more information.