Full Breakdown
United Airlines Stuck with Hundreds of Lie-Flat Seats Amid Boeing 737 MAX 10 Delays
8/24/2026, 2:10:40 AM
Core Situation
United Airlines says it is holding “hundreds of lie-flat seats” that cannot be installed on other aircraft after the Boeing 737 MAX 10’s certification has slipped far beyond its original 2020 target. The seats were ordered for premium transcontinental service on the MAX 10, but the airline has not disclosed a new interior layout and must decide how to use the inventory once the aircraft receives approval.
Background & Context
The MAX 10 was first announced in 2018, with United’s then-president Scott Kirby promoting a cabin featuring lie-flat business-class seats. Certification was delayed after Boeing had to redesign the engine anti-icing system, a change that also postponed the smaller MAX 7. Boeing completed its final certification flight tests in July, after more than 2,000 test-flight hours, and now expects federal approval “soon.” United originally planned to launch the MAX 10 in 2020; the first deliveries are now slated for the summer of 2027, with up to 20 airframes possibly in service by the end of that year.
Data & Statistics
- United reports 167 firm orders for the MAX 10, making it the model’s largest customer.
- The airline’s proposed MAX 10 cabin would hold 189 seats: 20 United First recliners, 169 economy seats (including 64 Economy Plus).
- United’s “Coastliner” subfleet of Airbus A321neo aircraft, repurposed for transcontinental routes, will eventually include 50 planes, with 40 expected in service by early 2028.
- Boeing’s North Line assembly line, pictured on July 10, 2026, will produce the MAX family, including the delayed MAX 10.
Official Statements & Responses
United’s chief executive Scott Kirby has emphasized the logistical challenge, noting that the lie-flat seats “don’t fit on other airplanes.” The airline has not released a definitive cabin configuration for the MAX 10 and is evaluating interior options once certification is secured.
Verbatim Quotes
- “We got a bunch of lie-flat seats that we don't know what to do with,” — United Airlines Scott Kirby, united airlines CEO
- “We got a bunch of lie-flat seats that we don't know what to do with. They don’t fit on other airplanes.” — United Airlines Scott Kirby, united airlines CEO
What’s Next
Boeing anticipates receiving federal certification for the MAX 10 “soon,” after which United expects its first delivery in summer 2027. The carrier will then need to determine whether to install the stored lie-flat seats, redesign the cabin, or pursue an alternative seating plan for the aircraft.
