Today only, JetBlue is offering a sale with flights starting at $49. These $49 sales have seem to be the norm lately with JetBlue, especially on Tuesdays, but there are actually only a few routes that are actually $49 and most seem to be in between the Caribbean Islands. After a quick look, it personally looks like this is a gimmick sale and fare prices are probably the same as they were yesterday. You might, however, find a great deal or see that a previously booked flight has reduced in price.
This sale is for travel October 30 – December 12 (with blackout dates: November 16-26). Remember, you have 24 hours to cancel a flight after it is booked for a full refund if you want to “book now and figure it out later.” Also, if you have a previously booked flight and the fare price has decreased, give JetBlue a call and they’ll give you a credit voucher for the price difference.