Originally Posted by
WildcatYXU
I ordered a RT-LAMP test from Switch Health when I got sick and the antigen tests given to me at the testing site confirmed Covid. I used it last Friday coming back from California. It was accepted without any problems when checking in at SNA and during the document check at SFO.
That sounds like an oversight by the agent at the airport, so don't think you can count on that as the rules for traveling with a prior positive still need a nucleic acid/PCR test. I know the agents I had check tests in LHR, DXB, and other Intl stations were very diligent in checking the type of test. I guess you lucked out and got US agents who were more used to dealing with antigen tests as the norm for travel.