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Global Entry question

I have a rather silly question about my global entry card. There are two numbers on the back side of my card — one on the left upper side and one on the right side. I remember that once, when making a plane reservation, I entered one of these numbers but was told that it was not the correct one. Unfortunately, after being home in the USA for the past few months, I’m not really certain which number I had entered. Can someone confirm for me which number is the correct number to put in when you are ordering a ticket on the airlines and they want to know your known traveler status? Thank you. I’ll be sure to mark it after this so that I won’t have to wonder in the future.

Posted by
305 posts

I believe is the PASSID, the number on the left.

Posted by
1056 posts

Thank you both. I’ve put a small dot by the correct number so my covid isolation brain doesn’t forget.

Posted by
4517 posts

I can't recall ever being able to enter the KTN in the ticket purchase process. It is either already in my airline profile so I need do nothing, or I add it to the reservation later when I enter the passport information.

Posted by
1056 posts

It’s already in my Delta profile. I was booking a seat on Alaska airlines for a trip next month. They asked for this number after I had booked my seat.