Southwest Airlines and American Airlines have both pushed back the start of Boeing 737 Max flights to March 2020 . The extended delay comes as the plane manufacturer must provide revised software after US and European regulators confirmed gaps in Boeing 's software documentation . It said on Friday it still hopes to receive seven MAX deliveries in the current quarter, with the remaining shifting into 2020. Furthermore , once this is completed , airlines need to run test flights before a commercial reintroduction . Both carriers have been cancelling over 300 flights a year since the jet was grounded globally in March 2019 , with American losing $ 540 m in 2019 as a result , and Southwest taking a $ 435 m earnings hit in the first nine months of the year .
Southwest Airlines and American Airlines have both pushed back the start of Boeing 737 Max flights to March 2020 . The extended delay comes as the plane manufacturer must provide revised software after US and European regulators confirmed gaps in Boeing 's software documentation . Furthermore , once this is completed , airlines need to run test flights before a commercial reintroduction . Both carriers have been cancelling over 300 flights a year since the jet was grounded globally in March 2019 , with American losing $ 540 m in 2019 as a result , and Southwest taking a $ 435 m earnings hit in the first nine months of the year .