Does Your Boarding Pass Have to Have Your Middle Name?
Your boarding pass does not necessarily have to include your middle name, but the first and last names must match your ID exactly. Middle names are not always required, but it's advisable to include them if they are present on your identification documents to avoid any potential issues during security checks.

https://oawp.va.gov/forums/general-discussion/2f0e84de-b637-ef11-a296-001dd8015683#b88474ea-b637-ef11-8409-001dd808546d
https://oawp.va.gov/forums/general-discussion/58077a14-b937-ef11-a296-001dd8015683