The 1975 LaGuardia Airport Bombing
On the evening of December 29, 1975, a powerful bomb tore through the baggage claim area of the Trans World Airlines terminal at LaGuardia Airport in New York City, killing 11 people and seriously injuring 74 more. Despite an extensive FBI investigation, no one was ever charged, and the case remains one of the deadliest unsolved terrorist attacks in American history. The bombing occurred during one of the most turbulent years for domestic terrorism in modern U.S. history, a period marked by dozens of bombings and two separate assassination attempts on President Gerald Ford.
The Explosion
At approximately 6:33 p.m. on December 29, 1975, a bomb hidden in a coin-operated storage locker detonated in the baggage claim area serving TWA flights at LaGuardia Airport, one of New York City's busiest travel hubs. The airport was packed with holiday travelers, many just days removed from Christmas and preparing for New Year's celebrations, when the blast tore through the terminal. The explosion killed 11 people instantly or shortly after and left 74 others with serious injuries, many from flying debris and shrapnel. Emergency responders rushed to the scene, and the terminal was evacuated as authorities worked to secure the area and treat the wounded amid chaos and confusion. The force of the bomb caused extensive structural damage to the terminal, shattering windows and collapsing portions of the ceiling. It stood as one of the deadliest terrorist bombings on American soil in decades, striking fear into a traveling public already on edge after a year defined by political violence.
Did You Know?
The LaGuardia Airport bombing remains one of the deadliest unsolved terrorist attacks in U.S. history—more than five decades later, the FBI has never identified a suspect, and the case technically remains an open investigation to this day.
Investigation and Theories
In the aftermath, the FBI launched a massive investigation, but no individual or group ever claimed responsibility for the attack, and the case has never been officially solved. Investigators pursued several theories over the years. One prominent line of inquiry focused on Croatian nationalist extremists, some of whom had carried out other bombings and hijackings in the mid-1970s to protest Yugoslav rule over Croatia. Others theorized the opposite: that agents connected to the Yugoslav government itself may have orchestrated the attack in an effort to discredit Croatian separatist groups operating in the United States and abroad. Despite years of forensic analysis, interviews, and intelligence gathering, investigators were unable to definitively link any suspect or organization to the bombing. The lack of a claimed motive or clear forensic trail has made the LaGuardia bombing one of the most frustrating unsolved cases in FBI history, and it remains formally an open investigation to this day, decades after the attack.
A Year of Domestic Terror
The LaGuardia bombing did not occur in isolation. It came at the tail end of a nearly four-year wave of politically motivated bombings that gripped the United States, with groups ranging from Puerto Rican nationalists to leftist radicals and various ethnic separatist factions carrying out attacks in cities including New York and Washington, D.C. The year 1975 alone saw a string of bombings and two separate assassination attempts on President Gerald Ford—one by Lynette 'Squeaky' Fromme in Sacramento in September and another by Sara Jane Moore in San Francisco just weeks later. This backdrop of instability meant that, while shocking, the LaGuardia attack fit a grim pattern Americans had grown increasingly accustomed to. The bombing prompted heightened security measures at airports nationwide and renewed public debate over domestic terrorism, foreshadowing security reforms that would intensify in the following decades. Even so, the human toll at LaGuardia—11 dead and dozens maimed—made it one of the single deadliest incidents of that turbulent era, a tragedy whose perpetrators have never been brought to justice.