Two business aircraft collided mid-air approximately 10 miles northwest of Florida Keys Marathon International Airport (KMTH) on 11 April 2026, with both crews executing successful emergency landings at KMTH. The Cessna 172S sustained substantial damage while the Raytheon B200 King Air incurred minor damage to its propeller, engine intake, and wing leading edge. All six occupants—two pilots in the Cessna and two pilots plus four passengers in the King Air—remained uninjured. The King Air was operating as a Part 91 business flight; the Cessna was on an instructional flight. This incident, logged as ERA26LA167, underscores the critical role of collision avoidance systems and air traffic coordination in busy coastal corridors like the Florida Keys.