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United's Seat Surprise: Max 10 Delay Creates Premium Dilemma
7 Sep
Summary
- United faces a challenge with hundreds of premium seats for delayed Boeing 737 Max 10.
- The airline retrofitted Airbus A321neos with new premium seating for transcontinental routes.
- The Boeing 737 Max 10 certification is over six years behind its original schedule.

United Airlines is currently navigating a unique challenge due to significant delays in the certification of Boeing's 737 Max 10 aircraft. Hundreds of lie-flat premium seats, originally intended for these planes, are now in limbo as they cannot be fitted onto other aircraft types. The Max 10's certification process has faced over six years of setbacks since its initial 2020 target.
In response to these delays, United has proactively retrofitted 20 of its Airbus A321neo jets. These aircraft, now named 'Coastliners,' feature new Polaris suites and premium economy seating, specifically designed for transcontinental routes. This adaptation allows United to implement its premium cabin strategy much sooner than anticipated, showcasing management's ability to adjust fleet plans effectively when facing supplier disruptions.
While the Max 7 variant has received FAA approval, the larger Max 10 completed its final certification flight on July 28, 2026. United, a major customer with 167 Max 10s on order, anticipates its first delivery in the summer of 2027. The airline sees potential in the Max 10 to replace aging 757-300s and serve high-demand domestic routes with increased capacity.