Frontier Airlines is committed to offering ‘Low Fares Done Right’ to more than 100 destinations and growing in the United Sta ... tes, Canada, Dominican Republic and Mexico on more than 350 daily flights. Headquartered in Denver, Frontier’s hard-working aviation professionals pride themselves in delivering the company’s signature Low Fares Done Right service to customers. Frontier Airlines is the proud recipient of the Federal Aviation Administration’s 2017 Diamond Award for maintenance excellence and was recently named the industry’s most fuel-efficient airline by The International Council on Clean Transportation (ICCT) as a result of superior technology and operational efficiencies. read more