As long as you’re fully COVID vaccinated, boosters not essential, then you’re good to fly to the USA - If you’re in the UK and travelling to the US ensure you’ve downloaded the NHS app that displays your COVID Vaccination Pass.



For those in the UK, just make sure that you are using the up to date NHS app that shows your Covid Vaccination Pass, download it a couple of days prior to you travelling. You can upload it to your booking through their app or, do what I do, print and bring to the airport. 

 

Also just make sure that you have completed the US Attestation Form, it is random whether anyone actually checks them. I have had someone look at them two or three times in the last six months, but still ensure you fully complete and bring with you to the airport.