The Airbus A220 began life as the Bombardier CSeries, a bold Canadian effort to design a brand-new jet optimized for the 100–150 seat market, a size category dominated for decades by older, less-efficient aircraft. Development formally launched in 2008, with Bombardier aiming to combine modern aerodynamics, advanced lightweight materials, and new-generation Pratt & Whitney geared-turbofan (GTF) engines to deliver major fuel-burn and noise-reduction benefits.

Despite strong interest from airlines, the program faced financial pressure and technical challenges through testing and certification. Still, the aircraft delivered on its promise: the CS100 (now A220-100) entered commercial service with SWISS International Air Lines in 2016, followed by the CS300 (now A220-300) in 2017 with airBaltic. Airlines praised the CSeries for its quiet cabin, excellent range, and impressive operating economics — especially on routes too thin for larger jets.

Recognizing the aircraft's potential, Airbus acquired a majority stake in the program in 2018, moving final branding and marketing under the Airbus umbrella. The CSeries was officially renamed the A220 in July 2018. With Airbus' global support network, the program gained momentum, new customers, and additional production capacity — including a second assembly line in Mobile, Alabama for U.S. operators.

Today, the A220-100 and A220-300 are known for combining the comfort of a larger jet with the efficiency of a smaller one. Features such as large windows, wider economy-class seats in a 2-3 layout, low cabin noise, and long-range capability have made the A220 a favorite for both airlines and passengers. The aircraft continues to grow its global footprint, flying everything from short-haul regional routes to transcontinental missions.

What began as an ambitious Canadian innovation has become one of the most modern and versatile single-aisle aircraft in the world, and a key part of the Airbus family.