On-line Travel Agencies Informative - Never Use An Online Agency Until You Know What The Airline's Prices Are
I was thinking of a vacation around Thanksgiving or December. Milan, Italy came up so I checked Orbitz - the cheapest rt fare I could find from Philadelphia to Milan was $758. That is a little rich for me, so I went to the USAir site - round trip fare from PHL-Milan was $475 (incl all fees and taxes)for the same dates. So I can use a discount online agency and pay $285 more per ticket than buying it directly from the airline. Hmm, doesn't sound like a good deal to me.
My point here is, do not rely on the online agency for the cheapest fare, check the various airline sites and sites like kayak.com and sidestep.com before you make your decision. Happy trails.