The US Air Force has awarded Boeing a contract worth up to $2.8 billion to upgrade South Korea’s F-15K Slam Eagle aircraft, based on the US F-15E Strike Eagle.
Under the deal, Boeing will provide the design and development of an integrated suite of aircraft systems, with the Pentagon contract notice refraining from specifying the subsystems involved.
Work will be performed in St. Louis, Missouri, with completion scheduled by December 31, 2037.
The contract follows the November 2024 US approval of a $6.2-billion foreign military sales package for F-15K modernization covering radars, mission systems, and support equipment.
F-15K Slam Eagle
The Republic of Korea Air Force’s F-15K Slam Eagle was modified to fit the Korean Peninsula’s threat environment, suited for air-to-air combat, deep-penetration missions, and anti-ship operations.
It is optimized for long-range strikes against hardened and underground targets — a key requirement given North Korea’s extensive network of military facilities below ground — and operates alongside the stealthy F-35A fighter jet.
The F-15K is powered by GE F110 engines and has been configured to carry long-range Taurus cruise missiles and indigenous precision munitions.
Seoul operates around 59 F-15Ks, and their modernization is intended to extend service life into the 2030s, improve survivability and sensor capabilities, and maintain interoperability with US forces.
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