Avoid Visiting Canada Says the CDC
The US Centers for Disease Control and Prevention issued a Level 4: Very High Level of COVID-19 in Canada Alert, suggesting should avoid all travel to Canada.
Because of the current pandemic situation in Canada, even fully vaccinated travelers may be at risk for getting and spreading COVID-19 variants, stated this CDC Travel Alert published on April 2, 2021.
'If you must travel to Canada, get fully vaccinated before travel,' says the CDC.
If you are not fully vaccinated and must travel to Canada, get tested with a viral test 1-3 days before your trip.
Furthermore, every air passenger coming to the USA, including U.S. citizens and fully vaccinated people, must have a negative COVID-19 test result, no more than 3 days before travel or documentation of recovery from COVID-19 in the past 3 months before they board a flight to the USA.
And after returning to the USA, travelers should get tested with a viral test 3-5 days after arrival.
If traveling by air, check if your airline requires any health information, test results, or other documents. Check with your destination's Office of Foreign Affairs or Ministry of Health or the US Department of State, Bureau of Consular Affairs, Country Information page for details about entry requirements and restrictions for arriving travelers.