Frontier Airlines recently introduced “Green Class,” a new class of service designed to meet the growing consumer demand for sustainable air travel. With the industry’s most fuel-efficient fleet and a variety of additional eco-friendly features, Frontier’s Green Class offers customers sustainability at every level. “Frontier is proud to introduce a new class of service for all of our customers, Green Class,” Barry Biffle, President, and CEO of Frontier Airlines said. “Consumers are now looking for choices that align with the…