[Answer] The oldest operating airline in the world is the national Dutch airline known by which three letters?

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The oldest operating airline in the world is the national Dutch airline known by which three letters?

• KLM:KLM Royal Dutch Airlines is the national carrier of the Netherlands. Founded in 1919, KLM holds the distinction of being the oldest operating airline in the world. The first flights began in May 1920, between London and Amsterdam. KLM has grown dramatically in its 100-plus years of service, now operating a fleet of over 100 aircraft. Today, the airline is part of the Air France-KLM group. The two airlines merged in 2005, but operations and branding remain separate. As such, KLM is able to stake a claim to continuous operation under the same name.

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