Something that might save some $$$ on your next flight out of San Jose or SFO?
Kids fly free on Frontier... and they don't have to sit in your lap!
On Frontier Airlines, if you sign up for their Discount Den membership (it's $60 for the year), your kids will fly for free (ages 14 and younger). And in addition to the "kids fly free" bonus, you also get access to Frontier's lowest prices not only for yourself but also for up to six people on the reservation.
There are some blackout dates. The promotion requires you to purchase one adult ticket as well and is only valid domestically.
But it still sounds like a great deal!