12.  Get a Refund When Fares Go Down
We’re betting you didn’t know about this one! You can get a refund of the difference between what you paid and the current going rate for your ticket if you purchased directly through certain airlines and travel sites. Do your homework on this one because it could definitely be worth it.

13. Park & Fly 
Sure, you might need to drive for a day but if another airport that’s maybe not so close to you offers fares that are significantly cheaper, it’s probably worth it to take off from there.