Originally Posted by
ermintrude
OK thanks for your reply,
I was aware that it doesn't match all the time; perhaps I just been unlucky recently as it's been on a number of flights I've looked up, so I thought there may be a technical problem. The example which prompted me to write this post is UA385 EWR-IAH Oct 19th.
Cheers
You have to compare the seat map layouts. If you look, you'll see that UA is showing some seats in the first and second to last row of the economy cabin as not existing, even though they exist. As such the seat map UA is publishing to the reservation systems and the one that SeatGuru has doesn't match, so we can't make a positive ID to show the SeatGuru popup info.