Is your last name Green or a Greene? If so, you're lucky, and you don't even have to be Irish! Frontier Airlines is running a promotion that may allow you to fly for free this month.

The promotion is entitled 'Green Week.' To be eligible, you have to legally confirm your last name as a Green Greene -- immediate family members only .

Then, book a flight that departs between 12:00 a.m. and 11:59 p.m. on Aug. 13, then the flight company will refund your trip.

For more information, check here.

According to the Frontier Airline website, the company is apart of a six-year initiative to make their flights more 'green.'

(Frontier Airlines)

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