PITTSBURGH -- If you are looking for cheap airfare, there is one day that might be better than any other to buy tickets.

Experts said Tuesdays are the best days for bargain hunters. Airlines are floating more short-term sales, trying to get passengers back in the sky.

"They actually file a whole bunch of new, cheaper airfares on Monday," said Rick Seaney of Farecompare.com. "Then you see a whole flurry of activity as everybody starts to match on Monday afternoon and Tuesday and then Friday, they just rip them out of the system."

For example, a recent ticket from Dallas to Boston cost $407 on a Tuesday, but was $536 by Saturday.