Fly Delta flight info not syncing to Calendar

Having problem with syncing my flight information on the Fly Delta app to my calendar.

I have tried taking a screenshot (hoping Siri will make the suggestion for the calendar), I have tried the “add to calendar” on the app (which doesn’t work), and I have tried opening the receipt on my Gmail with hopes that Siri will make a suggestion to add to my calendar. None of this has worked.

Any suggestions other than manually entering the information?