I'm curious about your experiences with getting the best prices on domestic flights... as in, when to buy the tickets. This is a topic that books have been written about!, but I recently saw Chris Gullibeau's CreativeLive.com Travel Hacking video, and he basically says that all those formulas are meaningless because airlines are always changing their policies (I tend to agree with him). Scenario: I need to book a round-trip flight for two adults from SFO to MCO from Jan 25 to Feb 1, 2015. That's 4 months out. The prices have steadily gone up over the past few weeks that I've been checking (I use Kayak.com). Question: Is it better to just grab the tickets now? Or should we wait for these flights to fill up, and then hope the new flights that are added, have better prices?