Updated June 12, 2022 5:50 AM IST
As of November 8, 2021 non-U.S. citizens are required to be fully vaccinated to fly to the United States. There will be limited exceptions to this requirement for certain non-U.S. citizens. This rule does not apply to immigrants to the USA. Notably, children under the age of 18 are not required to be vaccinated. Spouses or parents of US citizens are NOT EXEMPT from this requirement, unless they are citizens themselves. See vaccine requirements here.
Persons who are recovered from Covid, and hence have not vaccinated, or who have received only one vaccine dose, may be recognized as machlimim (recovered) by Israeli regulations. However, they are not considered fully vaccinated by the United States, and therefore only US citizens with this status are eligible to enter the US at this time.
You are considered fully vaccinated 14 days after the vaccination series was completed. For example, if your last dose was any time on October 1st, then October 15th would be the first day that you meet the 14-day requirement for entry to the US.
Further guidance on the very limited exceptions to these vaccination requirements, what constitutes acceptable proof of vaccination, and other operational details are available on CDC’s website.
UPDATE: As of June 12, 2022, Covid tests are NOT required for travel to the United States.