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.
Step 3. Select âone-wayâ (even if flying round trip â youâre just determining the cheapest days to fly out first) Step 4. Click âDepartâ but instead of entering a date, select âWhole Monthâ so you can see which date is cheapest. Step 5. Hit âsearchâ and see which date is cheapest. Sometimes not all dates have a price listed, as indicated by the magnifying glasses. If you want to see a price that isnât shown, simply click on the magnifying glass over the date. Repeat these steps for your return flight if applicable. You can still book a round trip in one cluster, but doing these steps first will let you see which dates are generally cheaper to fly in/out on for your round trip.