JetBlue is offering 15% off flights, so if you already have a trip in mind you want to take in 2018, now's a good time to get a discount.
The offer only applies to travel next year from January 10 to February 14, and February 26 through March 14. Also, the discount is on base airfare, not taxes and fees — depending on the flight, that means the actual percentage on your total purchase is likely to be closer to 8%. However, depending on your destination, combining that with one of JetBlue's typically low fares will get you a deal.
To take advantage of the sale, use the promo code RECESS to book directly through JetBlue. Airfare must be booked by December 13, and there's only one code allowed per booking.
If you're wondering whether or not JetBlue flies to a destination you want to go, check out their route map. In addition to serving domestic airports, JetBlue also flies to many Caribbean destinations.
So, for example, you could save on a flight from New York City to Turks and Caicos, from January 19 to 26 (right around when winter gets real old), and get $23 off of the $284 round-trip flight. (That's 15% off the base fare of $152.)
And even if a tropical locale isn't part of your winter plan (maybe it should be?), you can also use this code to save on whatever flights you know you'll need to take in the beginning of 2018.
As always in this new era of airline fees, double check what services you'll need to purchase, as the cheapest prices are for the airline's Blue fare which does not include checked baggage. Here's a guide to JetBlue's baggage fees.
At the same time, JetBlue is also having a contest with a grand prize of a year of flights — for you and a companion — for free.