Just a suggestion, but I think the reason Priceline rejected your bid was probably for one of two reasons. 1. It is too far away for any rental car company to have an accurate inventory this far in advance. Maybe make a regular reservation as a backup and then continue to bid as the time draws near. 2. Your rental period is too long. It might increase your chances to break up the rental period into three distinct periods and try your bid again. I know this is more of a pain, but if you're saving several hundred dollars, it would be worth it. One other thing, I would think you should be able to get an economy car cheaper than $17/day. I realize it's almost impossible to predict, but I have seen people able to get the following rates at TPA. compact: $13/day midsize: $15/day fullsize: $18/day