Spirit Airlines $9 fare club deals through Dec. 15

Spirit is having another $9 Fare Club sale, and a couple of routes are even better than free (they actually pay you to fly). This sale is only open to members of the Club. Plus, on fares of $49 or more, you can save $10 when you pay with your MasterCard. There are also some non-member fares, but they're not as good.

This sale ends at midnight ET Dec. 15.