Thanks a lot for your answer!
Could they enter their green card numbers somewhere in their DL profiles? Or during the web check in process?
Or did they enter their green card number as their passport number and listed themselves as American nationals?
Sorry to ask so many questions. I asked several people at Delta (DM desk, online support, skymiles) and they all say only US citizen can check in online for a one way or return flight to the US.
Originally Posted by
ULDB65
My wife and daughter have green cards and Global Entry, and have had no issues with online check in, regardless of destination, including returning to the U.S.
Perhaps there is something in your profile that needs to be updated?
And even with online check in, when its an international flight you still need to show your passport to somebody at Delta, either at a check in counter, Sky Club, or at the gate.