Airlines and online travel agencies surreptitiously use computer “cookies” they’ve implanted on your Web browser to track your activity on their sites and then raise prices when it appears that you’re interested in a fare. That’s the rumor, at least.
I inadvertently resurrected a long-simmering controversy over this rumor a few weeks ago, when I blamed airfare fluctuations on a practice called “caching,” which lets airlines or travel agencies store a copy of all fare information on their sites. Caching is efficient and cost-effective for the company, but less than 5 percent of the fares may no longer be available.
So what’s really going on?
“No airline cookie conspiracy? What about this trail of crumbs?”