Hello lrdpenn,

At New-York LaGuardia Terminal B, the boards are dynamic and lane position subject to change, even today.

So let's see some more recent examples. Note: This extra info does not affect the answer provided to the OP concerning Priority lane.

Looks like sometimes (and currently), the TSA Pre-Check line is a bit further to the left, through a side entry.

To find this lane, follow the arrows pointing to the TSA Pre-Check lane. In LGA Terminal B, they look like this :



They will lead you to the dedicated TSA Pre-Check lane, (sometimes/currently) separated from the two others. It remains in the same area, and easy to find.



Now, after walking to "All Gates", you would either be directed to TSA Pre-Check before or to the Standard lane(s) (Follow Standard to find the Priority lane). (And yes, standard is a confusing choice of word for the yellow board as it indicates the way to anything that is not TSA Pre-Check, but behind that you’ll find the blue digital boards for the standard lane and the priority too). It’s more obvious on site.



On a normal day (see pictures under), if the TSA Pre-Check lane uses the side entry, after ALL GATES board, you could find the standard lane on the left (blue board, for standard pax, no status or Y), and as you can see in this exemple lower, the Priority on the right (for Frequent Travellers / Business / First ) with the B-Fast lanes (paid add-on service), merged together.




As the boards are dynamic, it's hard to predict the lane location, however, as indicated in the first post, TSA Pre-Check should remain through the left (secondary/or main entry) and Priority lane on the right.

What is certain is that all these lanes will always be available on any given day, but entry point might change. However, it will always be in the same small area and easy to find.

And in this last exemple you can also see the Priority and B-Fast lanes merged together :


Photos credits : Dreams in the Air on youtube. Esteban on Flight Report. CharlesTV3 on Youtube.

Last time I went through security at LGA myself, the priority lane was on the right (after ALL GATES) and not merged. It was two weeks ago. I was able to enter the priority lane because of status, not because of class. You simply have to scan/show your BP.

I hope this explains it to you.

Enjoy your flight from LGA !