Facebook users' news feeds are lighting up with a new scam, this one centered on Southwest Airlines supposedly giving away hundreds of free tickets and $5,000 in cash.

The scam is spread when Facebook users like, share or sign up for the fake prizes. These include 400 free tickets to Las Vegas, 775 first class flights for the victim and five friends and cash. Instead of flights and money the people are led to taking online surveys or signing up for expensive mobile services.

“Almost 23,000 users have shared the post with their online friends, and 14,500 have liked the page – all in the mistaken belief that it might help win them free airline tickets,” wrote WeLiveSecurity security researcher Graham Cluley.