My husband and I want to visit Scotland but can't find any online deals. Are there Web sites that will alert me when they have low airfares?
There are plenty. Travel search engines such as SideStep.com, Kayak.com and Mobissimo.com scour airline and other travel sites for prices, then - after you pick the fare you want - send you to those sites to make your purchase. Each has individual features that allow you to comparison shop, but only Kayak.com and SideStep.com offer fare alerts - they'll notify you when fares fall.
Farecompare.com and Tripstal ker.com also notify you by e-mail when prices change or fall below your target fare. Farecast.com has a feature that predicts if fares are likely to rise or fall based on their recent history, so the site is able to advise if you should buy now or wait.
Because these sites locate their fares from different sources, you may have to check several to find the best price. And you should check airline sites, too, because they often can give you the lowest price if you buy directly from them.