Originally Posted by
askmrlee
FYI: I also tried to scan this in the passport reader on the Delta check-in kiosk but it didn't work. Didn't expect it to.
I haven't seen a USA "passport card", but EU ID can be used for travel. These IDs have the same international standard machine readable strip as is on the photo page of passports. Don't the US cards have this? If they do, the check-in kiosks shouldn't even "know" they are scanning a passport card instead of a passport. (European "passport cards" can be used instead of a passport in check-in kiosks no problem)