Here's a good tip when you're booking flights.  Try to fly on FRIDAY THE 13th. 

It turns out a lot of us still have irrational superstitions that make us avoid flying on Friday the 13th.  Kayak.com found that flights departing on a Friday the 13th are 20% cheaper than on other dates, because of so much less demand.

And a survey last year found people have OTHER flying superstitions too.  12% of people say a prayer before they fly, 9% HAVE to touch the plane before they get on, and 7% bring a good luck charm along.

Unfortunately, or fortunately, depending on how superstitious you are, there isn't another Friday the 13th until September of next year.

(PR Newswire)