1991 in aviation

January
January 16 - Eastern Air Lines is dissolved after 64 years of operation. Many of its remaining assets are parceled out to American and Continental.

January 17 - US-led forces attack Iraq in a massive air assault after a United Nations deadline for the withdrawal of Iraqi troops from occupied Kuwait passes unheeded.

February
February 1 USAir (now US Airways) Boeing 737 collides with Fairchild Metro III on a runway in Los Angeles International Airport. Thirty-four were killed.

February 28 - The US calls a ceasefire in Iraq, with airpower having neutralized practically all of the country's ability to make war.

April
KLM Cityhopper commenced operations after NLM CityHopper and Netherlines merged to create the airline.

May
May 26 - Lauda Air Boeing 767 crashes in Uthai Thani province, Thailand minutes after takeoff from Don Mueang International Airport in Bangkok. 223 people died.

June
June 17 - Alaska Airlines commences services to the Soviet Union

July
July 8 - a US Navy F/A-18 Hornet is forced to shoot down an E-2 Hawkeye after its crew abandons it following an engine fire

October
October 29 - a Royal Australian Air Force Boeing 707-368C Registered A20-103 conducting an asymmetric flight demonstration crashes into the Pacific Ocean 43Km South of East Sale, Victoria, Australia

December
December 4 - Pan Am, bankrupt since August 11, is finally dissolved after 64 years of operation.

First flights

February
February 13 - Swearingen SJ-30

April
April 27 - Eurocopter Tiger
April 29 - Cessna CitationJet

May
May 10 - Canadair Regional Jet
May 31 - Pilatus PC-12

June
June 18 - BAe RJ70

September
September 15 - C-17 Globemaster III

October
October 25 - Airbus A340