Southwest Hopes to Become All-MAX Operator by 2031

By the end of 2031, Southwest says it plans to retire its fleet of older Boeing 737-700 and 737-800 Next-Generation (NG) jets

Southwest 737 MAX jets
Southwest 737 MAX 8 aircraft. (Photo: AirlineGeeks | William Derrickson)
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Key Takeaways:

  • Southwest Airlines plans to transition to an all-737 MAX fleet by the end of 2031, retiring all 571 of its older 737 Next-Generation (NG) aircraft (737-700 and 737-800).
  • This fleet renewal aims to reduce the airline's average fleet age from approximately 11.5 years to just five years.
  • Despite Boeing delivery delays and ongoing certification issues for the 737 MAX 7, Southwest maintains it has ample flexibility with its retirement schedule.
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Amid a flurry of headlines from the airline’s Investor Day event on Sept. 26, Southwest also detailed its fleet renewal plan for the coming years. The Dallas-based carrier’s finance chief, Tammy Romo, noted that the company is aiming to operate only 737 MAX-series aircraft.

By the end of 2031, Southwest says it plans to retire its fleet of older Boeing 737-700 and 737-800 Next-Generation (NG) jets. Romo added that the airline’s average fleet age will be just five years old following the 737NG retirements.

According to Cirium Fleet Analyzer data, the airline’s current average fleet age is approximately 11.5 years. Southwest has 362 737-700s and 205 737-800s in active service, along with a fleet of 242 newer 737 MAX 8s.

A Southwest 737-700 in the ‘Canyon Blue’ livery. (Photo: AirlineGeeks | William Derrickson)

The airline is set to retire 35 aircraft in 2024, including 31 737-700s and four 737-800s. In addition, it expects to take delivery of 20 737 MAX jets.

“So first of all, we are looking to retire our entire NG fleet. As I mentioned, that’s 571 aircraft. That’s through the end of our order book, which is 2031,” Romo added. “So we are trying to balance all of that. Obviously, we want to meet our network needs, but we do have excess aircraft.”

Despite ongoing delivery delays and a machinist strike at Boeing, Romo said the airline has “ample flexibility with [its] retirement schedule.” Southwest had planned to receive the 737 MAX 7 this year but removed the type from its near-term fleet plan.

The airline has 286 737 MAX 7s on order along with 109 options for either the MAX 7 or MAX 8 variants. Boeing has yet to receive FAA certification for the 737 MAX 7.

 

Ryan Ewing

Ryan founded AirlineGeeks.com in February 2013 and has spent more than a decade covering the airline business. His work has been featured by CNN, WJLA, CNET, and Business Insider. His aviation experience spans airport operations, Part 135 regulatory compliance, and airline crew workforce planning, along with time behind the yoke of a Cessna 172 and interviews with airline executives. Ryan now serves as Group President of Firecrown Media’s Aviation Group. He holds a B.S. in Air Transportation Management and an MBA from Arizona State University and teaches Airline Management at Embry-Riddle Aeronautical University.
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