KLM was founded in 1919 and is the world's oldest airline continuously operating with its original name.
KLM
Avianca, originally known as SCADTA, is Colombia's national airline. It is Colombia's largest airline, and one of the oldest in the world.
Avianca
Qantas, the largest airline in Australia and one of its most recognisable trademarks worldwide, was founded in 1920.
Qantas
Aeroflot was established in 1923 as Dobrolet.
Aeroflot
Founded in 1923, CSA is the national airline of the Czech Republic.
Czech Airlines (CSA)
Founded in 1923 as Aero O/Y, Finnish national airline Finnair commemorated its 100th anniversary on 1 November.
Finnair
Founded in 1924, Delta is the oldest airline currently in operation in the United States and one of the oldest in the world.
Delta Air Lines
Iberia was the first airline to travel between Europe and South America when it was founded in 1927. It is still in operation.
Iberia
Founded in 1927 as Aeroput, Air Serbia is the national airline of Serbia and serves more than 40 destinations across Europe, the Mediterranean, and West Asia.
Air Serbia
Despite being created just recently, British Airways has a history that dates back to August 1919 and the world's first international scheduled service.