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United Airlines' oldest Boeing 737-700, known for its durability, has been used extensively since its merger with Continental Airlines. According to the airline, most of these planes, which are over 25 years old, are slated for replacement with newer, more efficient models.
The oldest aircraft, with registration N16701, is over 27 years old and still serves United's narrowbody fleet. It first flew on February 13, 1998, and has been part of United since the merger, operating with a layout accommodating 126 passengers. Similarly, N24702, another 27-year-old aircraft, continues to serve in the same capacity but is expected to be replaced under United's 'United Next' modernization plan.
United Airlines plans to retire these older 737-700s and replace them with the Boeing 737 MAX 8 and MAX 10, as they offer improved fuel efficiency, lower emissions, and reduced maintenance costs. This plan, introduced in 2021, also targets a better passenger experience. United's aging aircraft currently primarily operate domestic flights from hubs like Chicago O'Hare and Newark.
