double-blind study - an experimental procedure in which neither the subjects of the experiment nor the persons administering the experiment know the critical aspects of the experiment; a double-blind procedure is used to guard against both experimenter bias and placebo effects.
No they get more expensive, airlines will always advise you to book in advance to take advantage of their best fares. Sometimes they do a special deal but not within a week of flying. I would try another airline or make different plans.
(CNN) â While travel advice abounds for the best times to buy the most affordable holiday plane tickets, flying during some of the year's busiest travel periods generally isn't cheap. In this era of packed airplanes, smaller seats and fees for extra leg room, what airline is going to offer inexpensive fares around Thanksgiving, Hanukkah, Christmas and New Year's? Common business sense dictates that high prices will follow high demand.