Just a heads up for all traveling internationally on Delta or any of its codeshare partners.
If you are traveling with a minor (under 18) you will not be able to check the minor in online. You will only be able to check the minor in at the airport.
We are traveling to Paris tomorrow on Delta/Air France. My wife and I were able to check in online and get mobile boarding passes like normal. Delta FlyReady does not allow you to upload (or even ask for it) Covid-19 vax cards for minors.
A Delta agent confirmed that for some reason, the minor’s Covid-19 vax card/status must be verified in person, so my daughter can’t check in or get her boarding passes until tomorrow.
So much for skipping the check-in counter at the airport.