When is the best time to buy Air Fare tickets for March?

The best thing you can do is start comparing right now. Compare prices every few days until mid february but if you find a really good deal between now and then, buy the tix! there are quite a few sites that you can search that will likely give you the best prices available. check out the website BookMe and you will be able to compare prices on all the reputable travel sites in just a couple minutes. it's very convenient and will save you a bunch of time and money. Also, make sure you buy them online... otherwise they charge much higher fees for phone orders. good luck.