Is it true that airline flights can get cheaper closer to the date of the flight?

I've heard that airline flights lower the prices closer to the departure date just to fill the spot and make some money. Is this true. I would like to fly Frontier Airlines (b/c I have a credit with them) and the weekend I plan on flying just jumped $120. I plan to leave the weekend of Feb. 22nd. Thanks!

sure! they can also get more expensive! If you spot a good deal, jump on it....bear in mind, advance purchase restrictions mean the further out you book, the cheaper it is, normally. Feb 22nd is 3 weeks away. If you wait till day of, you might have to pay unrestricted (highest) fare. Not a gamble I would take.

try this

http://www.search2u.net/Flight.htm

tickets will typically jump three weeks before a flight and then again two weeks before a flight. they may fluctuate once you are within three weeks but typically will only increase when you are within two weeks. to cut through the deals, you should check out http://www.travelcuse.com to book your trip. the site is an aggregator which means it takes offers from various online sites and shows you the best deals. good luck!