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Required for all air passengers two years of age or older boarding a flight from a foreign country to the United States

What You Need to Know

  • If you plan to travel internationally, you will need to get a COVID-19 viral test (regardless of vaccination status) before you travel by air into the United States. You must show your negative result to the airline before you board your flight.
    • Fully vaccinated: The viral test must be conducted on a sample taken no more than 3 days before the flight’s departure from a foreign country if you show proof of being fully vaccinated against COVID-19.
    • Not fully vaccinated: The viral test must be conducted on a sample taken no more than 1 day before the flight’s departure from a foreign country if you do not show proof of being fully vaccinated against COVID-19.
  • If you recently recovered from COVID-19, you may instead travel with documentation of recovery from COVID-19 (i.e., your positive COVID-19 viral test result on a sample taken no more than 90 days before the flight’s departure from a foreign country and a letter from a licensed healthcare provider or a public health official stating that you were cleared to travel).

FAQs On This Page

Are You Fully Vaccinated for Air Travel to the United States?

You are considered fully vaccinated:

  • 2 weeks (14 days) after your dose of an accepted single-dose COVID-19 vaccine; or
  • 2 weeks (14 days) after your second dose of an accepted 2-dose series COVID-19 vaccine; or
  • 2 weeks (14 days) after you received the full series of an active (not placebo) COVID-19 vaccine in the U.S.-based AstraZeneca or Novavax COVID-19 vaccine trials; or
  • 2 weeks (14 days) after you received 2 doses of any “mix-and-match” combination of accepted COVID-19 vaccines administered at least 17 days apart.*

If you don’t meet these requirements, you are NOT fully vaccinated.

* CDC has not recommended the use of mix-and-match COVID-19 vaccine primary series. However, such strategies are increasingly common in many countries outside of the United States. Therefore, for the of purpose of interpreting vaccination records for travel to the United States, CDC will accept combinations of accepted COVID-19 vaccines.

See Requirement for Proof of COVID-19 Vaccination for Air Passengers for more information about necessary vaccination documentation.

COVID-19 Testing Requirement for International Travel to the United States

On October 25, 2021 CDC amended its January 25, 2021 Order, titled, “Requirement for Proof of Negative COVID-19 Test or Recovery from COVID-19 for All Air Passengers Arriving in the United States.” This amendment updates COVID-19 testing requirements for air passengers 2 years or older boarding a flight to the United States, depending on COVID-19 vaccination status.

Effective November 8, 2021 at 12:01am EST (5:01am GMT), before boarding a flight to the US from a foreign country, all air passengers- 2 years or older – are required to present a negative COVID-19 viral test result, within a time period based on their vaccination status (see table below), or present documentation of having recovered from COVID-19 in the last 90 days. Air passengers will also be required to confirm in the form of an attestation that the information they present is true.

Type of Air Passenger
(2 years or older)
Number of Days to get a COVID-19 Viral Test Before a Flight’s Departure to the US
Fully vaccinatedNo more than 3 days
Not fully vaccinatedNo more than 1 day

For the full list of requirements and exemptions, please review the language in the Order.

To learn more, please visit: https://www.cdc.gov/coronavirus/2019-ncov/travelers/testing-international-air-travelers.html