World’s Top Air Force to Extend F-15C/D Fighter Jet Service for 4 Years

WASHINGTON- The US Air Force has announced plans to keep a select few F-15C/D Eagles operational through 2030, extending their service for homeland defense missions that were originally scheduled to end in 2026.

A report sent to Congress details that these upgraded “Platinum Eagles” will continue to be based at Fresno Yosemite International Airport (FAT) as part of the California Air National Guard’s 144th Fighter Wing. This will enable ongoing airspace control and rapid response capabilities across U.S. air defense zones.

US Air Force Extends F-15 Service

The Air Force’s “Long-Term Fighter Force Structure” report, submitted in August 2025 and mandated by the 2025 National Defense Authorization Act, confirms that F-15C/Ds are now set to remain in service for at least four more years.

What was originally planned as a retirement in fiscal 2026 will now see these aircraft flying until 2030. At that point, the F-15EX Eagle II is expected to take over from the aging fleet.

According to the report, a gradual phase-out is planned: 42 aircraft will stay combat-coded through 2028, with 21 extending their service to 2030. The “Platinum Eagles” represent the most structurally sound and technologically upgraded models in the current F-15C/D fleet.

The Air Combat Command is actively managing the fleet to ensure only the most viable jets are operational. These aircraft will be crucial for intercepting and identifying any unidentified or hostile aircraft entering U.S. air defense identification zones, a vital aspect of homeland defense.

Modernization and Fleet Transition

The F-15C/D fleet, which has served for over 40 years, is nearing the end of its structural lifespan. More than 75 percent of these aircraft face operational limitations due to fatigue, impacting both their speed and G-load tolerance.

However, the upgraded versions still possess the capability needed for interception tasks, equipped with Active Electronically Scanned Array (AESA) radars and modern avionics.

Initially, the Air Force planned to replace these jets with F-22 Raptors, but reduced procurement created a gap that the F-15C/Ds have continued to fill. Recent transitions at RAF Lakenheath (LKZ) in the UK and Kadena Air Base (OKA) in Japan have seen these units shift to F-35 Lightning II and F-16 Fighting Falcon rotations.

The intention is to station F-15EX fighters at these bases once production ramps up.

The Path to F-15EX Integration

The Air Force anticipates the complete removal of legacy F-15C/Ds by fiscal 2031, as the F-15EX comes into full operational status.

This new variant offers enhanced avionics, digital fly-by-wire systems, and greater payload capacity, overcoming some limitations of the older models.

Despite these upgrades, officials stress the necessity of maintaining a strong defensive posture. The “Platinum Eagles” will ensure air defense capabilities while the F-15EX fleet is expanded.

The report additionally points out an increase in cannibalization of F-15C/Ds due to parts shortages, underscoring the urgency of acquiring F-15EX aircraft. Meanwhile, select F-15E Strike Eagles will continue to operate into the 2030s, preserving the platform’s legacy.

Future Fighter Force Planning

The Air Force’s 2025 report introduces a revised count of its operational fleet, now referred to as the “Combat-Coded Total Aircraft Inventory” consisting of 1,558 aircraft. This new terminology replaces the older “Primary Mission Aircraft Inventory” to better reflect active, reserve, and backup assets.

Officials are also seeking legislative changes to formalize this updated terminology and fleet accounting system, describing these updates as critical for aligning operational readiness with future modernization goals.