July 5, 2018: Yup – airlines are taking advantage of the popular “pop up” food truck or stand concept with their own version— pop up airfares — fares show up, usually late at night or early am via email, and offer some great discounts if you can move quickly and have flexible travel dates. With fuel prices going up — so will airline fares — pop up sales offer airlines the ability to quickly discount remaining seats from their computer managed inventories. Alaska has taken the pop up lead so far — but watch for others, including a few European carriers to “pop into” the game!!!