BOSTON- A Lufthansa (LH) flight from Chicago O’Hare International Airport (ORD) to Frankfurt Airport (FRA) made an emergency landing in Boston Logan International Airport (BOS) after a passenger allegedly attacked two teenagers with a metal fork and struck another passenger mid-flight.
Federal authorities charged the passenger, Praneeth Kumar Usiripalli, a 28-year-old Indian national and former student in the United States, with assault using a dangerous weapon while aboard an aircraft under U.S. jurisdiction.
Lufthansa Passenger Stabs Teens
According to the U.S. Attorney’s Office for the District of Massachusetts, the incident occurred on October 25, 2025, aboard Lufthansa Flight 431, traveling from Chicago (ORD) to Frankfurt (FRA).
Shortly after meal service, a 17-year-old passenger was lightly sleeping in a middle seat when Usiripalli allegedly stood over him and struck his left clavicle with a metal fork.
He then reportedly attacked another 17-year-old sitting next to the first victim, stabbing him in the back of the head with the same fork. The second teen suffered a laceration from the assault.
When flight attendants intervened, Usiripalli allegedly formed his hand into a gun gesture, pointed it into his mouth, and mimed pulling the trigger. Moments later, he slapped a female passenger seated nearby and attempted to strike a member of the cabin crew before being restrained.
The pilots diverted the aircraft to Boston Logan International Airport (BOS), where authorities immediately arrested Usiripalli upon landing. The flight was operated by an 11-year-old Boeing 747-8, registered as D-ABYQ.
Arrest and Federal Charges
Usiripalli, who previously entered the U.S. on a student visa, was reportedly pursuing a master’s degree in biblical studies. Prosecutors stated that he currently does not hold lawful status in the country.
He faces a federal charge of assault with a dangerous weapon with intent to do bodily harm while traveling on an aircraft. If convicted, he could receive up to 10 years in prison, three years of supervised release, and a fine of up to $250,000.
The case is being prosecuted by Assistant U.S. Attorney Allegra Flamm of the Major Crimes Unit. The FBI Boston Division, Massachusetts State Police, and U.S. Customs and Border Protection assisted in the investigation.
Authorities emphasized that the charges are allegations, and the defendant remains presumed innocent until proven guilty in court.
Law Enforcement Response and Ongoing Proceedings
The emergency landing and subsequent arrest were coordinated by the Lufthansa flight crew and Boston Logan ground authorities. Federal investigators collected witness statements and reviewed in-flight security footage.
Officials confirmed that both teenage victims received medical attention for non-life-threatening injuries. The flight continued to Germany after a brief delay, once law enforcement cleared the situation.
Usiripalli is scheduled to appear in the U.S. District Court in Boston at a later date.
Similar Incidents
A Delta Air Lines (DL) passenger departing from New York John F. Kennedy International Airport (JFK) was assaulted by a seatmate during a dispute over the armrest in September 2025. The situation escalated when Delta crew members debated whether the assaulted traveler was “too fat to fly,” while the aggressor was allowed to remain onboard.
Delta Air Lines (DL) later compensated the assaulted passenger and another traveler who switched seats with the aggressor, but the airline’s handling of the case has raised questions about bias, safety protocols, and passenger treatment standards.
The altercation began before departure when the aggressor argued with a woman stowing her bag in the overhead bin. After taking his seat in Delta’s Comfort+ section, the smaller passenger began elbowing his seatmate over control of the shared armrest. Witnesses said he then made derogatory comments about the other passenger’s weight, referencing diet programs and body size.
When the larger traveler reported the physical assault to a flight attendant, the aggressor accused him of being “too fat to fly.” Instead of removing the violent passenger, crew members reportedly debated whether the assaulted traveler should be offloaded due to his size. The discussion shifted focus from an act of aggression to one of bodily compliance.
A Delta “redcoat” ground service agent later intervened, treating the issue as a question of seat fit rather than misconduct. The assaulted passenger claimed he was pressured to delete video evidence of the incident before departure.
Despite clear safety concerns, Delta allowed the aggressor to continue on the flight. Both the victim and the woman who gave up her seat received frequent flyer miles as compensation
Unruly American Airlines Passenger
A similar event occurred aboard American Airlines (AA) Flight 2249 from Nassau (NAS) to Miami (MIA) in August 2025. During deplaning, a man grabbed a woman by the neck, sparking panic among passengers and calls for police intervention.
The altercation, captured on video, showed multiple passengers shouting for help as another man intervened and pushed the aggressor away. One voice is heard yelling, “Why are you hitting my wife?” while others demanded his arrest. The video shows the aisle in chaos, with passengers leaning over seats and shouting for authorities.
Miami-Dade Sheriff’s deputies boarded the aircraft after landing at Miami International Airport (MIA). The situation had calmed by their arrival, and no arrests were made after one man fled and the other declined to press charges.
American Airlines (AA) confirmed the incident and stated that law enforcement met the aircraft, emphasizing the airline’s commitment to safety. The case highlights the challenge airlines face in managing violent passenger behavior, especially once a plane has landed and jurisdiction shifts to local authorities.
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