What is the chepest plane in the military used today?

The cheapest military aircraft currently used is often considered to be the Cessna O-2 Skymaster, a light observation plane. While not in widespread frontline service today, it has been utilized by various military forces for reconnaissance and forward air control. In terms of newer aircraft, the A-10 Thunderbolt II, known for its affordability in operational costs relative to its capabilities, is also noteworthy. However, exact costs can vary depending on modifications and operational use.