Without much fanfare or even an announcement, Southwest’s policy for the maximal size of personal bags has changed. It had been a generous 18.5″ x 13.5″ x 8.5″. But now? It’s a skimpy 16.25″ x 13.5″ x 8″.
https://yourmileagemayvary.com/2023/...personal-bags/
The fine print on the
relevant web page reads:
Measurements vary by seat type and aircraft. These dimensions reflect the smallest available length, width and height under the seat.
I've noticed that aisle seats on most WN aircraft have very small under seat storage space.
Note: this is for the personal (second) carryon, not the luggage that goes in the overhead bin.
On the same page "Examples of personal items allowed" are given as
Personal items include purses, briefcases, cameras, food containers, or laptops (case included).
I thought backpacks used to be on the list, but cannot swear to it.