Free Flights in the United States for Those With This Last Name.

Frontier Airlines is offering free flights this month for those whose last names are Green or Greene.

A Colorado company claims to operate the “greenest flight in America,” giving away flights worth up to 400 euros for promoting Green Week. “The fuel efficiency of our fleet is unmatched by other U.S. airlines and allows Frontier to offer not only the lowest fares, but the most sustainable approach to flying,” according to company president and CEO Barry Biffle.

The airline says the customer response has been positive: “I was surprised to learn how many people have the last name Green. To take advantage of this promotion, you must book a flight at FlyFrontier.com, departing on Tuesday and returning by August 20, plus the surname Green or Greene.

Are you one of the lucky ones?