hi, im new to ft so forgive me if I've posted in the wrong place. I've looked through many other threads to find an answer to my question but no succes.

im baec blue and want to gain silver.
im flying to lax in jan 08 for 3 weeks in j and will then have 320 points. I've read about yup fares to gain tps and would love some help on how I may go about this. on this trip Im vey flexible with travel but need to be in vegas jan 10 to 13th and then also want to see pals in san jose and pheonix.

any suggestions? what kind of cost are yup fares?

thanks in advance from a complete amateur who's experience in travel websites amounts to the occasional visit to expedia