Priceline, like every travel site I am aware of, is ridiculous. First, get the best price you can on any airline travel site, priceline, expedia, travelocity, etc. Then go to that airline, same dates, same flight and you'll find the same price. HOWEVER, if your travel plans change, if you deal directly with the airline, although you may pay for a change, or pay a different amount for a flight, at least you can make a change. It's almost impossible to do it for less anywhere else. And in most cases, so sorry Charlie if you deal with a general travel site. I never used Priceline before a trip to another city for 10 days, a few weeks ago. I only rented a car through Price Line. When I got to my car, (1:30 AM) what priceline called a mid sized car, avis called a compact. My knees were in my eyeballs. SO I up graded to a real mid size car, not thinking too much about it. You guessed it, I got charged the Priceline charge plus an additional charge by Avis. BUT, my gripe is not that I was charged additonal, I know price line rules. It ws that I was totally mis lead about car sizing by PriceLine. And that sucks! Oh, by the way, I could have gottent he same price from Avis for my car. Priceline was of no benefit. Tricked again!