It's the airlines in general. We're booked from SMF-EIS at the end of October and United has changed our flight 3 times now. The most recent I only discovered after I went online to inquire about upgrading our seats. The 737 Max issue continues to create issues with all airlines, in our case they've cancelled most of the Sacramento-East Coast non-stops and decided to have us fly from Sacramento-San Francisco-Newark-San Juan..... Of course we received NO notice of the changes but our flight now leaves 3 hours earlier!

"We lost our corkscrew and were compelled to live on food and water for several days.
~W.C. Fields"