Iran Air Flight 655

Iran Air Flight 655 was an international scheduled passenger flight from Tehran to Dubai via Bandar Abbas that was shot down on 3 July 1988 by two surface-to-air missiles fired by USS Vincennes, a United States Navy warship. The missiles hit the Iran Air aircraft, an Airbus A300, while it was flying its usual route over Iran's territorial waters in the Persian Gulf, shortly after the flight departed its stopover location, Bandar Abbas International Airport. All 290 people on board were killed, making it one of the deadliest airliner shootdowns of all time, the deadliest aviation incident involving an Airbus aircraft of any type, and the deadliest aviation incident in Iranian history.

The shootdown occurred during the Iran–Iraq War, which had been ongoing for nearly eight years. Vincennes had entered Iranian territorial waters after one of its helicopters drew warning fire from Iranian speedboats operating within Iranian territorial limits. The reason for the downing has been disputed between the governments of the two countries.

According to the United States, Vincennes's crew misidentified the aircraft as an F-14 Tomcat, a US-made fighter jet part of the Iranian inventory, despite it transmitting civilian identification codes. They assert that Vincennes and other warships repeatedly tried to contact the aircraft on both civilian and military air distress frequencies, but received no response. Bandar Abbas acted as a joint civil/military airport, and Flight 655 had departed behind schedule. The Iranian government maintains that the US recklessly shot down the aircraft, violating international law, after repeatedly provoking the Iranian forces. Some analysts blamed the overly aggressive attitude of Vincennes's captain, William C. Rogers III, while others focused on more widespread issues and miscommunications on board.

The United States was criticized for the downing, especially in its initial response. Although not issuing a formal apology, American president Ronald Reagan issued a written diplomatic note to Iran, expressing deep regret. In 1996, both governments reached a settlement in the International Court of Justice in which the US agreed to pay US$61.8 million (equivalent to $127 million in 2025) on an ex gratia basis to the families of the victims and two A300B4-600 as compensation for Iran Air. As part of the settlement, the US did not admit liability for the shootdown.