Travel has pretty much gotten back to normal despite the pandemic. They have gotten rid of the mask mandate on flights and people are filling airports across the country.
Even though things have become more laxed, the CDC has some concerns. The agency put out new guidelines for travel.
They suggest that those traveling on domestic flights (air travel within the U.S.) should test for COVID up to three days before the departure. This is a change from their previous guidelines that only suggested those not vaccinated/those not up to date on their vaccines should test before travel.