Travel Advisory and Guidance - LA County Department of Public Health

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Travel Advisory and Guidance

Returning International Travelers-Omicron Variant-November 30, 2021: All international travelers who have been in any country known to have the Omicron variant within the past 14 days should follow returning travel guidance for persons who are not fully vaccinated. This means that fully vaccinated persons, unvaccinated or partially vaccinated persons, and those who have recovered from COVID-19 within the past 90 days should get tested for COVID-19 and should quarantine upon return to LA County if they have traveled in or transited through a county known to have the Omicron variant.

Updated November 4, 2021

California’s economy is now fully open and state travel restrictions are no longer in effect. COVID-19 remains a threat to our community and travelers should make sure that they are fully vaccinated prior to travel. In addition, travelers are encouraged to plan ahead and get a COVID-19 booster and/or additional dose if eligible before travel. Travelers should continue to take precautions to reduce the risk of COVID-19 such as masking, physical distancing, and hand hygiene. Help keep California and Los Angeles County open and our communities healthy by following the CDC travel guidelines.

When considering travel within or outside of California, Los Angeles County Department of Public Health asks that you do the following:

  • Do NOT travel if you or any of your traveling companions:
    • Are sick with symptoms of COVID-19
    • Tested positive for COVID-19 and have not ended isolation
    • Have been in close contact to someone with COVID-19 in the past 14 days1
    • Are waiting for the results of a COVID-19 viral test.

    1Exception for close contacts: People who are fully vaccinated and people who recovered from COVID-19 in the past 90 days can travel as long as they have no symptoms of COVID-19.

    For more details on when a person should not travel, see the CDC’s When Not to Travel guidance.
  • Strongly consider delaying travel until you and all of your traveling companions are fully vaccinated.

    You are considered fully vaccinated against COVID-19 two weeks after:
    Note: booster doses and third doses are not required to be considered fully vaccinated, but they are strongly recommended if you are eligible.

    COVID-19 vaccines are widely available across LA County. See Get Vaccinated for more information.
  • Take extra precautions if you or any of your traveling companions are at high-risk of severe illness from COVID-19. Consider checking with your health care provider for more specific advice about travel based on your health and underlying medical conditions. If you haven’t already, be sure to get your booster/and or additional COVID-19 dose (if eligible) at least 2 weeks before traveling.
  • Wear a high-quality face mask that fits snugly over the nose and mouth during travel. Masks are required when you are on a plane, train, public transit, and in any transportation hubs. Wear a mask any time you are indoors with people not in your travel group. Learn more about masks at ph.lacounty.gov/masks.

Domestic Travel

  • If you (or any of your traveling companions) are not fully vaccinated and you must travel, follow the CDC domestic travel guidelines for people who are not fully vaccinated including:
    • Get a viral COVID-19 test* 1-3 days before travel and only proceed with travel if your test is negative.
    • Review and follow the CDC Safer Travel Tips, which provide recommendations on safer choices for persons who are not fully vaccinated including accommodations, gathering, food and more.
    • After travel, get a viral COVID-19 test* 3-5 days after returning and quarantine for 7 days. If you opt not to test upon return, quarantine for 10 days.
    *Note: If you recovered from COVID-19 in the past 90 days, you do not need to test or quarantine as long as you are asymptomatic.

  • If you are fully vaccinated, follow the CDC domestic travel guidance for fully vaccinated people. In addition, consider getting a viral test for COVID-19 1-3 days prior to your travel and 3-5 days after you return if you are at increased risk of getting infected and/or live/work with others at high risk for severe COVID illness.

International Travel

International travel poses additional risks and even fully vaccinated travelers are at increased risk for getting and possibly spreading new COVID-19 variants.

Effective November 8, 2021, all international air travelers must adhere to the following federal guidelines:

Prior to boarding a plane from a foreign country to the U.S.

  • All travelers* must get a COVID-19 viral test regardless of vaccination status and citizenship. You must show your negative result to the airline before you board your flight. The timing of required testing depends on your vaccination status:
    • Fully vaccinated travelers: must show proof of full vaccination and a negative COVID-19 viral test result from a sample taken no more than 3 days before the flight’s departure.
    • Travelers without proof of being fully vaccinated: must show a negative viral test result from sample taken no more than 1 day before the flight’s departure.
    *Only the following people do not need to get a viral test: children under 2 years of age and people who have recovered from COVID-19 in the past 90 days and have appropriate “documentation of recovery”.

    See Requirement for Proof of Negative COVID-19 Test or Documentation of Recovery from COVID-19 for details.

  • All travelers must provide contact information to the airlines. This will be used to identify and contact people in the U.S. who may have been exposed to COVID-19 or other communicable disease.
  • All non-US citizens and non-US immigrants traveling to the U.S. by air must provide proof of full vaccination against COVID-19. Only limited exceptions apply. For more information about this requirement, visit CDC’s page for non-US citizen travelers.

After arriving in the U.S.

  • Get a viral COVID-19 test 3-5 days after travel regardless of vaccination status.
  • Quarantine if you are not fully vaccinated and have not recovered from COVID-19 in the past 90 days. You should self-quarantine for 7 full days even if your test is negative. If you don’t get tested, it is recommended you should quarantine for 10 full days after travel. Self-quarantine at home or in your hotel room is required for non-fully vaccinated non-US citizens and non-US immigrants permitted to travel by air through an exception.

Note -- For non-US citizens and non-US immigrants who are not fully vaccinated and were permitted to travel by air through an exception: If you intend to stay in the US for 60 days or longer, you must become fully vaccinated against COVID-19 within 60 days of arriving in the U.S. or as soon as medically appropriate, unless you have a medical contraindication or are too young to be vaccinated.

Summary of Travel Recommendations and Requirements

Domestic Travel
Not Fully VaccinatedFully VaccinatedRecovered from COVID-19 within past 90 days
Get tested 1-3 days before leaving for travelConsider
Wear a mask and take other precautions during travel
Get tested 3-5 days after returning from travelConsider
Quarantine upon return
  • for 7 days
  • for 10 days if not tested
Self-monitor for symptoms for 14 days post travel
https://www.cdc.gov/coronavirus/2019-ncov/travelers/travel-during-covid19.html


International Travel
Not Fully VaccinatedFully VaccinatedRecovered from COVID-19 within past 90 days
Get tested before travel (required before boarding a plane to the U.S.)
Neg test must be collected within 1 day of flight

Must show proof of full vaccination and negative test must be collected within 3 days of flight.
No test required as long as appropriate proof of “documentation of recovery”
Wear a mask and take other precautions during travel
Get tested 3-5 days after returning to U.S.
Quarantine upon return
  • for 7 days
  • for 10 days if not tested
Self-monitor for symptoms for 14 days post travel
https://www.cdc.gov/coronavirus/2019-ncov/travelers/international-travel/index.html


For the latest information, see CDC guidance on Travel During COVID-19:

For the latest travel information from the Mexican Government, see:



*Persons who have recently recovered from COVID-19. If you tested positive for COVID-19 with a viral test and recovered, you do not need to test or quarantine again for 90 days as long as you do not develop new symptoms of COVID-19. “Recovered” means you are no longer infectious (and have completed isolation). If you had symptoms with your most recent infection, the 90 days are from the start of your symptoms. If you never had symptoms, then the 90 days are from the date of collection of your first positive viral COVID-19 test.

Get Vaccinated.

To find a free COVID-19 vaccine near you, visit VaccinateLACounty.com and click on “How To Get Vaccinated” or call the Public Health Vaccine Call Center at 833-540-0473, open daily 8:00 am to 8:30 pm. No appointment is needed at many locations, and free transportation may be available. You do not need insurance, and you will not be asked about your immigration status. In-home vaccination is available for people who are home-bound.

To find flu vaccines near you, call your doctor or local pharmacy or call 2-1-1 LA County information line (you can ask for locations where flu vaccines are low cost or free). See “Where Can I get a Flu Immunization” for more information.

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Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.

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