Baha: at the end of the day it costs about the same to go to all 3 airports the questions are.... 1) can you stay a Saturday night? 2) will you have enough time to quailify for an 7, 14 or a 21 day advance purchase ticket? If you answer no to #1 or #2 ... your screwed. As for the Business Traveler Flex fares.....they still require and advance purchase but do not require a saturday stay... If you are flexible you can catch a DL flight for about $285 with tax and a little more for CO or US Scott SFO