The latest update came today (2/4/19). Southwest Airlines is flying its first "proving flight" tomorrow (Tuesday 5th) from Oakland CA to Honolulu HI as one of several tests to prove, to the FAA, they can fly their new twin engine 737-8 max planes over the ocean long distance safely. They will have to prove they can also fly the plane on one engine in the event of an engine problem. They will also do a simulated diversion to the nearest airport. When flying transoceanic, from California to Hawaii, there are not exactly any close airports to choose from in the event of an emergency. Its 2,500 miles or 5 hrs of flight time over the ocean! Once all of their ETOPS proving has passed the FAA and they get their authorization, then Southwest can begin booking flights. No set time as of yet but Southwest hopes to begin scheduling and actual flights before the end of March, assuming another government shutdown doesnt happen.
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