SimpleLandian Airlines was organized a month after SimpleLandia was founded in December 2017. SL Airlines is famous for it's signature paint job as the New SimpleLandian flag, and it's spectacular perfomance as a small, emerging airline. Fun fact, the liverys on the early SL Airlines jets was a mistake, because the flag was inverted, and no one ever took notice until the Lykins 101-B was released, with the fixed livery.

Effective from July 14, 2019, the logo pictured left will be painted. on the tail of every SimpleLandian Airlines aircraft.