I just opened up a Southwest Airlines Visa card. I will earn the 50,000 bonus points for doing this. On the website it says they are good for 2 free flights. If I decide to go when the flights are cheaper and only 6,000 each way can I use it on more then 2 flights or do they limit it to just 2. I would love to fly my family of 4 for next to nothing in January but I'm not sure how it works. Any input would be great as I have not received my bonus points yet.