A group of Southwest Airlines Boeing 737 Max 8 aircraft sit on the tarmac at Phoenix Sky Harbor International Airport in Phoenix, Arizona.
Ralph Freso | Getty Images
The worldwide grounding of Boeing 737 Max planes is now in its fifth month and disruptions to air travel are set to continue for several months more.
Aviation regulators haven’t said when they might allow the 737 Max to fly again. They grounded the planes across the globe in mid-March after two fatal crashes — one in Indonesia in October and another in March in Ethiopia— killed a total of 346 people.
With the planes out of service, airlines that have the jets in their fleets have cancelled thousands of flights during peak travel periods. More cancellations are ahead in the coming months with no guarantee the planes will be airborne again by the end of the year.
Only in service for a little over two years, the Boeing 737 Max is more fuel-efficient version of the workhorse single-aisle plane that has been in service since…