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.
After all, you can always purchase a return ticket later. However, you need to take into consideration the growing popularity of discount airlines and airfares, increased competition between discount lines and legacy carriers, and the surprising truth that round-trip airfare is frequently cheaper than a one-way ticket.f you're purchasing a ticket to a domestic destination and do not need a return, a one-way ticket is almost always cheaper. U.S.-based discount airlines, such as Southwest Airlines and JetBlue, frequently offer one-way fares for under $100.