Is your last name "Green" or "Greene"? If so you could be cashing in on a free flight from Frontier Airlines. The Colorado-based airline is celebrating Green Week, which is their eco-friendly initiative. So naturally, if you have the last name "Green" you get to save a whole lot of green.

Frontier will cover flights up to $400 in value. Here is the catch, you need to book a flight that flies out by Tuesday, August 13th and return by August 20th.

Frontier's CEO Barry Biffle said "Our fleet's fuel efficiency is unmatched by other U.S. airlines and allows Frontier to deliver not only the lowest fares but the most sustainable approach to flying,"

Make sure you tell a friend that has the last name Green or Greene and unfortunately for them, they need to get packing ASAP!  I am still trying to figure out how I can manage to get a flight for free. If they do this annually I may just go and get my last name changed. It would pay off!